... 2.capacity:80-120kgs, 3.double ball bearing Medium Duty Red pu Double Ball Bearing Axle Fixed Hand Dolly ... brake Applications: 1.Office equipment2.Display stands,warehouse racks,storage tools3.Mop buckets4.Institutional,medical&food service ... ,Shopping cart casters,Furniture casters,Institutional casters,Medium duty casters,Heavy duty casters,Garbage disposal rubber caster,Scaffording casters etc ...