Foam EPP Muscle Peanut Massage Ball 

Waist slimming exercise with Yoga Roller Ball Sit on the custom Inflatable Yoga Ball with your buttocks, hold your hands flat on your chest, and twist your waist back and forth. Function: The weightless sitting position of the handheld Yoga Ball can reduce the pressure on the spine and tail during exercise. Twist the waist left and right, not only the waist becomes slender, but also the curve of the willow-leaf waist can be shaped. Diameter   (cm) Length     (cm) Density    (kg/m³) Package (pcs/carton) Carton size(cm) 8 12 16 24 45 45 100 50 82*34*44 62*49*64 Material…