core twist board is a quick and easy way to exercise your thighs, hips, waists, and core. 27.5cm in diameter so it is easy to balance and exercise at anywhere. The waist-twisting exercise can train the abdominal muscles inside the abs and the hips, as well as the back muscles, which are naturally used to balance during the exercise. Incorporate arm movements with twisting motions for an even better workout. 8 magnets attached to the core twist provide magnetic therapy, which is known is to have a natural healing effect and helps promote blood circulation. The massage knobs work to target reflexology trigger points in the feet while helping to keep you from slippingfooting It is 27.5*4.5cm in size, perfect for most adults. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store