Rotating twister for exercise for fitness foot massage with 360 loop magnets

Quickly develops thigh muscles, hips and slims the waistline ? Fast and lasting improvement of body shape? Burn unnecessary calories without excessive effort? S strengthens many body muscles and improves physical fitness ? Does not press the knee joint TECHNICAL SPECIFICATIONS: ? Product code: 14453_CZ ? S swivel twister ? Doesn't take up much space? Suitable for training at home? Are there built-in magnets? The bubbly surface provides a great foot massage ? Color: black