Made of high-tech thermoplastic rubber, TPR (DK®). Gray tread color. 65 Shore A. Wheel core is constructed of polyolefin.<br>Features:<br>* Order by 6 pm for same day shipping.<br>* Made of high-tech thermoplastic rubber, TPR (DK®).<br>* Gray tread color.<br>* Quantity quotes available.<br>Order online from Box Partners today.