Quiklox mount designed for motorcycles that require mounting in the fork stem tube. Package contents: Motorcycle fork stem mount 2 expandable spacers 2 spare large snap rings 2 spare small snap rings 2 Allen wrenches for installation/adjustment Specifications: Fits tube sizes 13 to 25.4 mm (1/2 to 1 in) Horizontal rotation of 360 degrees and vertical rotation of 90 degrees Smartphone can be used horizontally and vertically High-strength plastic material with anodized aluminum base