Thank you for viewing. Please be sure to check the transaction details, precautions, etc. in my profile. The bag has some damage. This is a support item for flexibility and stretching. For yoga, ballet, anti-aging, etc. The foot part is made of soft material and is securely fixed with Velcro, and by holding the belt part and pulling or supporting it, you can firmly stretch your calves, etc. The belt part allows you to change the part you hold, so you can change the support strength according to your flexibility. The belt part is not made of rubber material. Management 33-134