3" overall. 4" x 5" plate. Fits hole pattern 2-7/8" x 4". Refrigeration units with 3 or more doors require 2 sets. 2" grease resistant wheels with side brakes. Raises height of equipment 3". 200 lbs. weight capacity per caster. Temperature range of 4°F to 176°F. Includes mounting bolts and lock washers. 4 pieces per set. Case quantity: 8 per case. Fits True Refrigeration. This product is not manufactured or authorized by any other manufacturer. Registered Trade Name or Mark of the original manufacturer of the product which this part fits is not owned, associated or to be confused with our company.