Item Code:HJ-912 Item Name: ankle protector Main material: SBR double frame mercerized nylon fabric,Leica cloth Size: 22-26.5 cm Function: it can fix ankle joint, prevent ankle joint sprain, and prevent Achilles tendon from overstretching. The tightness can be adjusted at will.It fits your ankle better Parts.Bamboo charcoal with far infrared radiation, can penetrate the blood vessels, stimulate the meridians and acupoints, improve the body function.