light duty pu brake caster 1.size:50mm,75mm 2.load capacity:40-55kg ... :pu 4.color:grey;brand:YH light duty pu brake caster1.size:50mm,75mm2.load capacity:40-55kg3.material ... wide, include kinds of Rubber caster, plastic caster, wood caster,pu caster,cast iron cater, nylon caster, ball caster, pneumatic caster ,rubber wheel ,plastic wheel ... information ,pls contact with us. light duty pu brake caster