Features: brand new and high quality Durable Material: The bike ranging tool is made of aluminum alloy material and features a high temperature resistance. Strong and durable, lightweight. Precise Measurement: This gear hanger alignment tool adopts high-quality structure, and it is more convenient and quicker, lighter in weight and small in size. Design: The bicycle alignment tool can 360 degree rotation, telescopic measurement, free to adjust the length, more convenient and quick. Multi-functions: It can be used to measure and straighten misaligned derailleur hangers, which solves the problem of high-proportion shifting. The most notable is the index shift system. 2 Colors: We provide 2 different colors, black, red, for you to choose, meet your different needs. This hanger alignment tool is an indispensable tool for your repair tools. Specifications: Material: Aluminum Alloy Color: Black/Red Package Weight: approx.355g Shrinkage Length: approx.28cm/11.02in Stretch Length: approx.44cm/17.32in Note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1Pc x Mountain Bike Tail Hook Aligner