Arkon CPMHD Robust Bike Motorcycle Handlebar Clamp Mount (sku 60017)Use on ATV, UTV, Ag equipment Handlebars, Carts, Bars, Tubes Compatible with 25mm Ball Size Shafts Composite Material Stainless Steel HardwareThe Clamp Post mount with 25mm (1 inch) Ball is designed for wide range clamping. The heavy duty mount is made of high strength composite materials with corrosion resistant stainless steel hardware. The clamp mount opens to 2. 75 diameter to securely grip roll bars, tubes, handlebars, warehouse carts, etc. The