Ball caster 1.stem top ,size can be customized 2.rubber ball 3.competitive price,durable in use 4.accept small order Ball caster 1.Available top: stem, plate or thread2.size:40mm or 50mm3.load:20-25kgsThe color of the ball can be black ,white or other as requestedOur Advantages1) High quality 2) Competitive price3) OEM is acceptable4) timely shipment5) small order accepted We are true factory ...