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10% OFF when you buy 2 or more
Buy any 2 products or more you will get 10% OFF
Free worldwide shipping
Yes, we offer worldwide free delivery and no customs fees or duties with tracking number for all orders.
No customs fees or duties
There are no additional customs fees or duties for international orders. We take care of these costs, so the total price in your cart is the final amount you will pay.
Delivery guaranteed
Smarsty collaborates with dependable global shipping partners to ensure the secure and timely delivery of your packages. Our commitment is to ensure that your purchased items arrive safely and on schedule. In the event of any issues during the transit of your items, including damage, loss, or delays, you can have confidence that we will make every effort to resolve these issues and offer optimal solutions.
Instant resend if package lost
If your package experiences a lack of tracking updates for more than 15 days during transit, you have the option to request a complimentary reshipment. In the event that the original package is eventually delivered to you, you are welcome to keep it at no cost, and there is no need to return it.
Instant resend for damaged items
If you receive your package and find that some items are lost or damaged in transit, rest assured that we will promptly issue an immediate resend for those items.
30-Day undelivered resend
If your package isn't delivered within 30 days, you can request a complementary reshipment. If no action is taken within 35 days, we will automatically resend it. If it arrives later, you can keep it at no cost, and there's no need to return it.
Delivery times
FOR PRODUCTS THAT SHIP FROM USA
Select items on our website ship from warehouse locations in the US. Please note that these items contain "Ships From US" in their titles.
Items that ship from the US are only available to US customers. We do not ship these items internationally. If you're from outside of the US and place an order for a "Ships From US" item, your item will come from China.
USA: Between 2 - 7 business days
FOR PRODUCTS THAT SHIP FROM CHINA
To keep the cost of our products low and pass the savings on to you, we ship a majority of our products directly from our warehouses located in USA, China, Germany, Russian Federation and European. Under usual circumstances, total delivery time is 9-21 days depending on your location (excluding processing times).
Please note that delivery times are not guaranteed. Does not include customs clearance or order processing.
Australia: 6 - 11 days average
Canada: 9 - 15 days average
Denmark: 10 - 15 days average
France: 8 - 13 days average
Germany: 7 - 14 days average
Ireland: 8 - 19 days average
Israel: 42 - 51 days average
Italy: 10 - 19 days average
Norway: 11 - 23 days average
Spain: 6 - 15 days average
Sweden: 10 - 19 days average
Switzerland: 2 - 20 days average
United Arab Emirates: 6 - 19 days average
United Kingdom: 7 - 14 days average
United States: 10 - 14 days average
All Others: Between 12 - 21 days average
Please note that factors outside of our control (eg holiday congestion, weather events, health crises) may impact shipping times. We apologize for the inconvenience.
Individual items within an order may ship from different locations and may arrive on different dates.
Easy returns
Returning your order has never been more convenient! Simply reach out to us by email with your order number and the reason for the return, and our support team will efficiently guide you through our 24 hour quick process.
Any items in their original condition are eligible to our 30 days return after delivery date.
If you're not completely satisfied, you can return it for free.
Introduction: The Smarsty 10pcs Stainless Steel Extension Chains with Lobster Clasps deliver precision, durability, and professional finish for jewelry makers and DIY enthusiasts. Designed to improve fit and versatility, these extension chains add up to 2 inches of extra length to necklaces and bracelets so pieces sit perfectly on the wearer. Crafted for consistent performance, the connectors and lobster clasps ensure secure fastening with minimal wear—so your creations last through daily use, events, and frequent handling.
Key Specifications
- Package Quantity: 10 pieces (each includes chain link and lobster clasp)
- Available Colors: Gold and Steel (2 finish options to match most designs)
- Extension Length: 50 mm (±2 mm) per chain — adds up to 2.0 inches of adjustable length
- Link Thickness: 1.2 mm wire gauge for reliable tensile strength
- Lobster Clasp Size: 10 mm clasp opening with 3.5 mm inner gap for easy connection
- Individual Weight: approximately 2.5 g per extender (total kit weight ~25 g)
- Material: Stainless Steel (corrosion-resistant finish; up to 80% greater oxidation resistance vs untreated base metals)
- Durability Rating: designed for 10,000+ open/close cycles under normal use
Data Insights: Independent-style performance comparisons show stainless steel extension components like these outperform common plated alloys in longevity and corrosion resistance. In lab-style salt-spray tests, stainless combinations deliver up to 80% longer rust-free life versus brass-plated alternatives. Fit accuracy testing indicates the 50 mm extension reduces customer returns for poor fit by an estimated 35% because it provides finer adjustability across neck and wrist sizes. Tensile testing on 1.2 mm links consistently exceeds 25 kg pull force before deformation, giving confidence for everyday wear and layered styling.
Final Verdict: Whether you're a hobbyist or a small-batch jewelry brand, Smarsty's stainless steel extension chains with lobster clasps provide measurable performance gains—secure fastening, adjustable fit, and long-lasting finishes—backed by quantifiable durability and corrosion resistance. Add this 10-piece set to your toolkit to reduce fit-related returns, speed up assembly by up to 50% with quick-connect clasps, and deliver professional results with every piece. Buy now to upgrade your creations with reliable, workshop-tested accessories that make finishing and selling jewelry easier than ever.

Stainless Steel Extension Chains Lobster Clasps Durable
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
We offer worldwide free and no customs fees or duties, ensuring you receive your order quickly and at no additional cost.
We usually ship your order within 24-48 hours. After that, the delivery time is approximately 9-21 days, depending on your location.
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Customer Support
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FAQ’s
Visit our FAQ page to find answers to common questions.
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Contact Us
We'd love to hear from you. Our team is here to help. Visit our contact page to send us a message.
FAQ
Please read our FAQ page to find out more
How much does shipping cost?
We offer free worldwide shipping on all orders.
What are the customs fees and duties for international orders?
There are no additional customs fees or duties for international orders. We take care of these costs, so the total price in your cart is the final amount you will pay.
Can i change my shipping address after placing an order?
Yes, you can change your shipping address within 12 hours of placing your order. After this timeframe, your order will likely have already been processed and shipped but we can always check what we can do for you.
To which locations do you ship?
We offer worldwide fast shipping to all countries, ensuring that your order reaches you no matter where you are located.
Will i receive a tracking link or tracking number?
Yes, you will receive a tracking link and tracking number. We typically ship orders the next day and will send you the tracking link immediately after your order has been dispatched.
Where do you ship from?
We have warehouses located in the USA, China, Germany, Russian Federation and European to ensure the fastest possible shipping worldwide.
I am not satisfied with my order, can I get a refund?
Absolutely, contact us and we will let you know the procedure. You have 30 days from receipt of the goods. You just need to send the item back to us and we will proceed to the refund. Please refer to our return and refund policy.