These series are made from pressed steel swivel bracket with double ball bearing in the swivel head bolted wheel excel. Size range : From 50 mm to 150 mm. Caster types : Swivel type Fix type. Load carrying capacity : From 30 Kgs to 250 Kgs on each castor. Construction of material : Mild steel with Zinc plating, powder coating, stainless steel-matt or mirror finished.