Rubber helms chain, stretchy chainmaille bracelets made with black EPDM rings and colored anodized aluminum rings. Slip on style stretches over the hand, no clasp, due to the stretchy nature the sizing is approximate. While a small will fit a 7.5" inch wrist it will be tight, if you want a loose comfortable fit consider ordering a size larger. Nickel free jewelry makes a great gift. small fits wrist 6" to 7.25" (snug) medium fits wrists 7" to 8" large fits wrists 8" to 9" **more colors available by custom order, other sizes available up on request