... Yoke: PP 3)Loading capacity: 70kg 4)Wheel diameter:75mm caster:Wheel: PU Yoke: PPLoading capacity: 70kgWheel diameter:75mmTread width ... platedType: swivelMounting: top plate,threaded stem,grip stemFeatures:1.caster: swivel caster,rigid caster2.Nylon: anti-abrasion, rolling resistance,rotary ... etc.4.brake:Nylon brake,without brake5.suitable scope: furniture,official dest,etc. 2010 new furniture caster