2" Hardwood Safe Office Chair Casters - Metal Body with Sockets - Set of 4 Flat Black Finish; Ships with Wood Sockets Ideal for Hardwood, Laminate and Tile Floors 2" Urethane Wheel; 75 pound capacity per caster Cast Metal Body for Chairs, Furniture, Tables and Carts Grip Neck Stem Size: 5/16" diameter; 1-1/2" length