Description:Built-in Springs: Designed with 4 springs in the pads, it helps to relieve pressure while the knees bending. It will never affect your flexibility when doing sports.Relieve Knee Pain: The knee pad is built-in patella shock absorbing pad, providing support for your knees.Minimizes the knees pressure during exercising, jogging, hiking, running, playing basketball, etc.Material: Made of OK cloth and polyester material, skin-friendly, very durable. Not easy to deform in long-term use.With silicone strip to avoid slipping. Open hole design provides extra ventilation.Magic Sticker: The knee brace goes with 3 pieces of tight closed and durable magic sticker , it is easy to adjust and not easy to fall off, easy to wear/take off.Wide Compatibility: Perfect for Football, Volleyball, Basketball, Cycling, Running, Hiking, Badminton, Hockey and other Sports.Specification:Material: Spring, Silicone strip, OK clothColor: Black+Red, Black+Blue, Black, Pink, Blue, GreySize(LxW): About 57x19.5cm/22.44x7.68inch, for Leg circumference 34-55cm/13.38-21.65inchPackage includes:1pc x Knee PadNote:1. Due to the light and screen difference, the item's color may be slightly different from the pictures.2. Please allow 1-2 cm differences due to manual measurement.