1.Rack caster 2.Materials:PU on PP 3.Dia.: 100~200mm 4.Load capacity: 200~3500kg 5.OEM is welcome. Green PU Tread , Gray PP core scaffold caster - rack caster, storage equipment, component, accessory, construction tool.Item No.: SCXXXTPUGDia.: 100mm,125mm,150 mm, 200 mmLoading capacity: 200 kg, 350kgsteel roller bearingCustom design and OEM are welcome. rack caster, construction tool