Trolley caster,caster,supermarket caster 1) Material: PU caster with pp core 2) Diameter:100mm,125mm Trolley caster,caster,supermarket caster 1) Material: PU caster with pp core2) Diameter:100mm,125mm3) Wheel width: 30mm4) Bearing type: single ball bearing5) Load capacity:60kg,80kg5) Can be widely used in shopping trolley.