Applicable : Strength Training Apparatus 4 D-RING DESIGN & EXTRA STRAP:Uniquely Designed with 4 Strong metal welded "D" ring meet the requirements of a actions. Extra strap under your feet helps to optimize your foot's stability to achieve maximum glute activation per . FULLY ADJUSTABLE:With nylon fastening tape design, elastic adjustable, strong paste.These ankle straps are easy to put on and adjust to your fit. UNIQUELY DESIGHED: Ankle Straps are uniquely designed for Lower Body Exercises by Maximizing your lower body exercises focusing on Glutes, Hamstrings and Butt. Colour:black Material:+PP Size:25.5x8.8cm Package Contents: 1 pair of ankle straps Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.