Foot master swivel stem ratchet leveling caster – 550 lb. Capacity – 50mm dia. Nylon wheel – m12 x 1.75p stem mounting hole pressed steel plate with khaki powder coating. Aluminum die-casting bracket with bi-level balls in the swivel head. High quality abs resin handle w/ two sided access to level. Nbr resin cushion for anti-vibration. 3/8 depth of stem hole. Ivory texture powder coating.