Description: As the bike shifter features an accurate shifting, it is easy to control. And it is rustproof, corrosion-resistant, and impact-resistant. Since the bike shifter is lightweight, it will add no extra pressure to your bike. Featuring an ergonomic handle, it is comfortable to grip. Made of aluminum alloy, it is durable and shockproof. The suitable handlebar diameter is from 21mm to 23mm. It is suitable for MTB, folding bike, etc. Item Name: Bike Shifter Material: Aluminum Alloy Mount: Left(3 Speed)/Right(7 Speed) Features: Easy Installation, Non-slip, Ergonomic Handle Size Details: Suitable Handlebars Diameter: 21mm - 23mm/0.83" - 0.91" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Left Shifter 1 x Right Shifter 2 x Brake Lines As the bike shifter features an accurate shifting, it is easy to control. And it is rustproof, corrosion-resistant, and impact-resistant. Since the bike shifter is lightweight, it will add no extra pressure to your bike. Featuring an ergonomic handle, it is comfortable to grip. Made of aluminum alloy, it is durable and shockproof. The suitable handlebar diameter is from 21mm to 23mm. It is suitable for MTB, folding bike, etc.