Name:caster wheel,caster wheel,casters Specification 1 diameter:75/85/100/125/160/200/250mm; 2 bearing:50/55/70/100/150/230/250kgs; 3 material:steel&rubber; Aduantage 1good quality; 2competitive price; 3 variety modles and specification; 4 professional manufacturer; Packing 1 each caster put into a plastic bag; 2 4 casters put into a large plastic bag; 3 100 casters put into a export carton.