finger brace aluminum: aluminum alloy, sponge size;S/M/L Origin: hengshui finger braceIt's made of the aluminum alloy, sponge, VELCRO, stress belt, asclamp, breathable holesIt suitable for different fingers.we hengshui runde medical instrument co.,ltd can supply different medical products , Such asmedical crutch , back support belts. finger splints. etcs. finger brace factory