Description: *1. Material: PP plastic *2. Color: pink, purple, cyan, green *3. Packing size (approx): 25*15*15cm *4. Applicable: fitness equipment, sports, fitness body Method for using: *Bridge-like: 1. Under plank, put the product on the hips to keep the body parallel. 2. Tilt the pelvis backwards while lifting the belly. The wings of this product remain closed for 60 seconds. *Riding: 1. With your feet open and your knees half bent together, hold the product vertically down to your knees. 2. Force the inner thigh for 5 seconds. Basic training methods: *1. With your toes open 40 °, stand with your heels closed. *2. Clamp the product with the upper part of the inner thigh. *3. When the inner thigh muscles are slowly exerting force, use the inner buttocks and the gluteus maximus to exert strength. *4. Breathe down from the abdomen for 5 seconds, then slowly inhale and return, 8 to 12 breaths at a time.