Chrome 1 Inch Motorcycle Custom Bars Universal Handlebar Risers 4.5" Rise Fit For Kawasaki VN Vulcan Classic Drifter 800 Height from bottom to center of hole: 4.5",Bottom Thread Mount: 1/2" Coarse x 13 (13 threads/inch) Bolt this set is made for 1 inch handlebars only,Instructions: Not included Hole Diameter: 1",Width: 1.25",Pull Back: 1.5",Total Height: 6" Quantity: 1 pair (left and right) Color: Chrome