Koso has over 30 years of experience in designing and manufacturing high quality products. They are known for their product's quality, reliability and capability. Always wondering which gear you're in? Never wonder again with this gear indicator. The large digits and blue backlight make it easy to read in day or night riding. Lightweight, compact, easy to use and to install, this meter will tell you quickly which gear you bike is in Measures 1.45" wide x 2" T x .7" thick Includes mounting hardware and instructions Display range: N, 1, 2, 3, 4, 5, 6