White Universal Motorcycle Motorbike Aluminium Insert / Plastic Handguards Hand Protectors- 7/8 (22mm) Made from ABS high impact plastic moulded around a solid aluminium bar All fitting hardware included Mounts to 22mm (7/8) handlebars with internal handlebar diameter between 12mm &17mm Simply insert Hand Guard spacers into the end of your handlebar & tighten. As you tighten, the spacer expands inside your handlebar & becomes tight, locking the Hand Guards into position Please See Photos For Measurements