... Stem Dia 21mm*H 48mm scaffold construction&real estate caster wheel with brake zinc plated finished to resist dent,corrosion ... .advantage:use for medical trolleys,beds,machinery caster wheels etc.Specification: Size75*32mm,100*32mm,125* ... casters,Shopping cart casters,Furniture casters,Institutional casters,Medium duty casters,Heavy duty casters,Garbage disposal rubber caster,Scaffording ...