1.Dia.:50mm 2.Load capacity:50kg 3.Plastic,different fittings available, 4.Good quality 1.Product specifications:1.Load capacity: 50kg per caster 2.Wheel diameter:50mm3.Caster material: Plastic,pressed steel,zinc plated,yellow zinc plated4.Chrome, zinc or nickel plating available 5.Matches with different fittings such as swivel, fixed ,double brake plate 6.Plastic or nylon is ravailable 7. ...