Made of elastic solid rubber for smooth rolling quality. Vulcanized onto wheel center. Gray tread color. 65 Shore A. Wheel core is constructed of impact resistant nylon.<br>Features:<br>* Order by 6 pm for same day shipping.<br>* Made of elastic solid rubber for smooth rolling quality.<br>* Vulcanized onto wheel center.<br>* Quantity quotes available.<br>Order online from Box Partners today.