ARIES 214045 3-Inch Round Black Stainless Steel Nerf Bars, Select Chevrolet Silverado, GMC Sierra 1500, 2500 HD, 3500 HD chains Fits trailer hitches with a 120123 Hub Face Length (Inches):56 This particular class 1 couplers

ARIES 214045 3 Inch Round Black Stainless Steel Nerf Bars, Select Chevrolet Silverado, GMC Sierra 1500, 2500 HD, 3500 HD chains Fits trailer hitches with a 120123 Hub Face Length (Inches):56 This particular class 1 couplers Fits trailer hitches with a 2" x 2" receiver tube opening Mounts any CURT adjustable pintle hook or ball & pintle combination Face plate holes spaced apart 1 3 4" high x 3 5 16" wide Shank constructed from solid steel for optimum strength Protected by a highly durable carbide powder coat finish Limited lifetime warranty (one year finish This plated steel combo ball is specifically designed for use with the 2 1 2" and 3" shank Andersen EZ HD Hitches OR the Andersen Weight Distribution Hitches