There are 3 sizes, you can choose the size that suits you best. Size Length Width Width Belt length S: 21 x 9 cm / 8.3 x 3.5 inches, M: 23 *10 cm / 9.1 x 3.9 inches, L: 24 x11 cm / 9.4 x 4.3 inches, you can choose the size that suits you bestHelps correct the orientation of injured ankles. If you use plaster, you can use this ankle support for auxiliary use. At the same time, it can help relieve swelling and pain. You can also walk down. The strap can be easily adjusted to firmly hold and even support fragile and sore Or injured ankleUnlike the board fixed by plaster, this ankle support can be removed at any time, and it is particularly comfortable to wear. The 4 aluminum bars provide additional strong support and compression. The U-shaped design perfectly achieves maximum fit and comfort.Light and breathable material is used to keep refreshing and comfortable to avoid the sultry during sports. It is ergonomic and the open heel design can perform a variety of sports during activities and still provide support for ankle tendons and joints.100% brand new, made of composite cloth and metal materials, environmentally friendly and , non-toxic and harmless to the body, breathable, high elasticity and comfortable to wear, black stain resistant treatment, more suitable for daily use