These leveling castors are made of sturdy metal, wear resistant nylon wheel and durable rubber pad. Its easy to move heavy items and keep them stay in one place by adjusting manual knob. Its great for heavy duty furniture, workbench, welding table, vending machine, medical equipment, laboratory device. Specifications: Color:White Material:Metal, nylon wheel and rubber pad Wheel Diameter: 50mm Top Plate size: 7.2 7.2cm (LW) Bolt Holes Distance: 5.8 x 5.8cm (L x W) Mounting Hole Diameter: 7.2mm Height: 8.7 ~ 9.5cm Package Included: 4 Leveling Castors.
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