Add a flash of color to your handlebars. Alloy Bar End Plugs are precision engineered and machined using lightweight, durable 6061-T6 aluminum. They are compatible with mountain and road bike handlebars thanks to an expanding wedge that makes a secure fit for most inner bar diameters. Available in a variety of anodized color options that match Wolf Tooth headsets, stem caps, seatpost clamps, bolts, and more. Specifications:- Weight: 17 g for set of two- Alloy plug diameter: 26.6mm- Compatible handlebar inner diameter range: 16 mm - 21.5mm- Material: 6061-T6 aluminum cap, black anodized 7075 aluminum bolt, glass-filled nylon expanding wedgeCompatibility:- Works with mountain and road bike handlebars. The expanding wedge makes a secure fit for most handlebar diameters.- Compatible with handlebars measuring 16 mm to 21.5 mm inner diameter.- Use 3 mm hex tool (not included) to secure bar end plugs. Tighten until snug, Do not overtighten.