Features: * Heavy duty all steel wheel Ideal for dollies, creepers, or for heavy duty caster replacements * Ball bearing base carriage swivels for smooth change of direction * 6-inch diameter wheel, swivel caster * 3-inch x 4-inch steel plate with bolt holes * 750 lb. weight limit per wheel What"s In The Box: * Grip 43028 6-inch Swivel Caster Steel Wheel with 750-Pound Weight Limit