PU-Foam Wheel Model: 3.00-4 Good design of patterns;All kinds of bearings,rims and ... Dia.(mm)Width(mm)Hub length(mm)Hole Dia.(mm) 3.00-42607075-8116/18/20/25 1,Good design of ... /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 ...