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_N ? S swivel twister ? Space saving? Suitable for home exercises? Are there built-in magnets? The bubbly surface provides a great foot massage ? Color: blue