★Lightweight aluminum bar end cap perfect for road bikes. ★ Aluminum CNC machined cap, aluminum color bolts, CNC machined aluminum nuts, and bar end caps made of lightweight aluminum. ★ The bar end cap has a high quality texture that makes it the perfect accent for your bike. ★ The fixing method is also made of rubber to stop internal pressure, so it can be used with carbon handlebars. It is also resistant to slipping. ★The fixed size can support handlebar end inside diameter up to 18.5mm or 21mm, which can be used with most handlebars.