Description: Because of beautiful appearance, it is unique, practical and personality. The handlebar riser adapter is lightweight, easy to install and use, and holds bar securely. Made of aluminum alloy, it is durable and wear-resistant . The length of 6 is 60mm, the length of 7 is 70mm, the length of 8 is 80mm, and the length of 9 is 90mm. The handlebar diameter is 31.8mm, and the fork diameter is 28.6mm. There are two models for you to choose. It is suitable for mountain bikes, road bikes, folding bikes,etc. Item Name: Handlebar Stem Material:Aluminum Alloy Adjusting Angle: A: 7 Degrees/B: 17 Degrees Size: 6,A: 6cmx3.18cmx3.18cm/2.36inx1.25inx1.25in 7,A: 7cmx3.18cmx3.18cm/2.76inx1.25inx1.25in 8,A: 8cmx3.18cmx3.18cm/3.15inx1.25inx1.25in 9,A: 9cmx3.18cmx3.18cm/3.54inx1.25inx1.25in 6,B: 6cmx3.18cmx3.18cm/2.36inx1.25inx1.25in 7,B: 7cmx3.18cmx3.18cm/2.76inx1.25inx1.25in 8,B: 8cmx3.18cmx3.18cm/3.15inx1.25inx1.25in 9,B: 9cmx3.18cmx3.18cm/3.54inx1.25inx1.25in Notes: Due to the light and screen setting difference, the product's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 X Handlebar Stem