PU-Foam Wheel Model: 3.00-4 Good design of patterns;All kinds of bearings ... can choose the weight and the colour of the pu part;2,Plastic rim and steel rim with many ... many sizes like 1/2",5/8",3/4",1" and other sizes;4, Angled grease fitting and straight grease fitting ... ;5,Top quality;6,Competitive price;7,Good service. 3.00-4 PU Foam Wheel