Thank you for viewing. ■ Product Description By attaching this to both feet and repeatedly rolling the lower curved section from side to side, you can efficiently and effectively exercise the muscles around the pelvis. It has a flat stretching surface on the top so you can stretch the muscles that are important for maintaining body balance and for creating a supple body line. By combining this with the repetitive rolling motion, you can efficiently perform beautiful balance exercises. Please incorporate stretching every five repetitions. ■ Material / [Outer fabric, side fabric] Polyester [Core material] EPE ■ Size (approx. cm) / [Product] 40 x 39 x 14 This item has only been used once and is in beautiful condition. Please judge the details from the images. Please understand that this is a used item, and those who are overly concerned about the condition or are looking for a perfect product should refrain from purchasing. Returns are not accepted, so please ask any questions you may have before considering a purchase. Please refrain from price negotiations. It will be wrapped in cushioning material for shipping. #Diet #Exercise #MuscleTraining #Abs #Flexibility #Gymnastics #Pelvis #Waist #HipUp