MATERIAL: Swivel plate is made of steel, supporting frame is made of premium aluminum, wheel is made of wear-resistant rubber, and the foot base is made of NBR
SIZE AND LOAD CAPACITY: The wheel measures 2" in diameter and 0.94" in width; swivel plate measures 2-7/8"x 2-7/8" (LxW), mounting hole diameter 7.2mm, holes distance 2-9/32"× 2-9/32" (LxW); 4 leveling casters totally load up to 2200lbs
HEIGHT ADJUSTMENT: With a built-in gear, it's easy to raise or lower the caster, height range is 3.5" to 3.75"; adjusting leveling caster independently allows the heavy duty item sit steady even on an uneven surface
MULTIFUNCTION: The NBR foot base is wide and thick to provide a shock-absorption support; with the foot base retracted, the wheel rolls smoothly under heavy load
GREAT FOR: Installing on workbench, vending machine, industrial equipment, welding table, wargaming table, pool table, large size cabinet and kitchen island