Dolly Casters, Set of 4, Choose Size

These models include inter-locking thread guards and grey non-marking rubber wheels. The following sizes are available: 3" Size -Wheel Diameter: 3"Tread Width: 1-1/4"Capacity: 275 lbs.Overall Height: 3-11/16"Mounting Plate Dimensions: 3-1/8" x 4-1/8" 3-1/2" Size -Wheel Diameter: 3-1/2"Tread Width: 1-1/4"Capacity: 300 lbs.Overall Height: 4-3/4"Mounting Plate Dimensions: 2-1/2" x 3-5/8" 4" Size -Wheel Diameter: 4"Tread Width: 1-1/4"Capacity: 325 lbs.Overall Height: 5-1/16"Mounting Plate Dimensions: 2-1/2" x 3-5/8"