Shiny, 316L high quality stainless steel figaro chain with 316L stainless steel infinity-heart focal point. Sturdy, thick jump rings and stainless steel lobster clasp. Discreetly wear your BDSM lifestyle pride on your wrist; completely nickel-free. CAN be worn 24/7 if cleaned regularly, with lobster clasp option. OTHERWISE, you may choose locking, nickel-plated heart padlock option ($5 extra)--padlocks should not be worn 24/7!! All BDSM jewelry should be cleaned often; a care sheet is included with each order. ♥ MEASURE -- DO NOT GUESS ♥ The measurement you choose is what you will receive. Read shop policies; NO returns or exchanges on my handmade-to-measure goods. Use MEASURING TAPE: lay tape where you want the length on the ankle; always round UP to next largest length. You can always shorten your chain, but nothing can be done if you order too short. Thanks for reading everything. :)