1. Legs around the knees are around 10 cm. M: 26-39CM L: 40-50cm 2. Material is OK cloth, sponge pad, Leka, professional dance knee pads. Suitable for mountaineering, cycling, basketball, dance, etc. 3. The collision is not slipped. The knee knee pads use thickened sponges to reduce the probability of lap injury when exercise. 4. Adopt open design can be freely adjusted according to personal preferences, and it is convenient to wear. 5. The knee pads are designed with silicone non-slip strip, increase the possible knee pads and knee friction, and reduce the possible possible. 6. Inside the knee, the suture is designed in cotton, comfortable, soft and soft. 7. There are two non-slip silicone strips on the top of the knee. Effective preventing kneef knee during exercise. Material is OK cloth, sponge pad, Leka, professional dance knee pads. Suitable for mountaineering, cycling, basketball, dance, etc Inside the knee, the suture is designed in cotton, comfortable, soft and soft Legs around the knees are around 10 cm. M: 10.2-11.4", L: 15.7-19.6"