5'' bed caster APU236 bearing:900pound Diameter:6 inch wheel width:2 inch optional color& fork 5''bed casterDiscreption of castorWheel Material: APU236Shelf Material:PA66Diameter:3 inch,4 inch,5 inch,6inchLoad capacity:225pound,300pound,325pound,900poundOEMwe are professional manufacturer 5'' bed caster