1.Ball bearing, rear brake caster 2.Materials: TPR 3.Dia.: 100~125mm 4.Loading capacity: ... 5.OEM is welcome. thermoplastic rubber caster - tpr caster, shopping cart caster, wheel for trolley and barrow, handcart caster, gurney caster wheel. Item No.55xxxTPRD-B ... ±5 Shore ACustom design and OEM are welcome. shopping cart caster, wheel for trolley and barrow