... InformationsDetailed Product Description Caster: 1.Wheel:PA,PU tyre+PP core 2.Diameter:50mm3.Fixed height:54mm4.Load capacity:40kg5.Tread size: ... top plate,threaded stem,grip stem,bolt hole Caster Features:1.caster: swivel caster without brake2.PU: excellent anti-abrasion, ... ,official appliance,shop,supermarket, etc. Workshop Special Test MachinesCertifications 1.5 inch side mounted nylon wheel