Specifications: 19.50"/22.50"/24.50" Wheel 22mm Wheel Studs 1.053"-1.063" Wheel Hole Steel/Aluminum Wheels Steer/Drive Axles Fits Some Trailers 4" Pin Length Outside Diameter 0..012" Smaller Than The A-1339 Features: Reusable Shop Tool Hardened Steel Threaded For Easy Removal Sold In Sets of 3 Storage Case Included