PU-Foam Wheel Model: 3.00-4 Good design of patterns;All kinds of bearings,rims and ... smooth pattern,ribbed pattern,knobby pattern,sawtooth pattern,turf pattern,diamond pattern,lug pattern and so on ;2,You can choose ... many sizes like 1/2",5/8",3/4",1" and other sizes;4, Angled grease fitting and straight grease fitting;5 ...