The special adjustment tool for the derailleur is easy to operate and easy to use.Easy to carry: small and sturdy, can be used as travel equipment to solve most bicycle problems.It is a perfect tool for all kinds of cars.Gifts: To provide convenience for your bicycle, it is especially suitable for yourself, your family or friends as the best gift.Features: Durable, easy to use, cycle tool.Name: Maintenance ToolsMaterial: ABSColor: as shownTotal length: 10 cm/3.94 inches (approximately)notes:1. Due to manual measurement, please allow a difference of 1-3cm.2. Due to the computer screen, the real color may be slightly different from the picture, please understand, thank you.Only the main picture products are sold, and other decorations are not sold.1*toolNote: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.