1.Features: This double bicycle stem handlebar extension bicycle grips can be used with the corresponding diameter pieces for 31.8 mm and 25.4 mm handlebars. 2.Safe and stable handlebar: double handlebar mounts provide a strong and stable holding power. And they are removable, you can mount them according to your needs. Attach the holder to the handlebars of the bike with a screwdriver. Even if you accelerate, the extension of the handlebar does not fall off. 3.Easy to install: installation and disassembly with an Allen key is easy. Break the space restriction of your bike and expand your installation options. Wonderful holder prepared for cyclists. 4.Quality material: the double mountain bicycle torch holder consists of a lightweight carbon handlebar and a durable handlebar mount made of aluminium alloy, very robust and lightweight, portable and durable.