Rubber Mount Fat 1 1/8 inch about 28mm Oversize Handlebar Clamp Bar MountsPrecision CNC Machined For Tight Tolerance From 6061 T6 Alloy.Durable Anodized Finish To Prevent CorrosionIt is easy to installation,professional Installation Is Highly Recommended.Fitment: Universal for Motorcycle (Must be put the 28mm caliber on your motorcycle before install this clamp adaptor)Hole Size: 1 1/8 inch about 28mmPosition on bike: Left & RightMaterial:CNC Aluminumcolour:TitaniumPackage Contents:2 x Handlebar heightening codeOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.