Features: Length: apporx 36cm/14.2inches, small, portable & easy to carry. 3 in 1 crank cotter pin/ball bearing/spoke length measuring tool. With double-sided scale & mm & inch scale, inch for ball bearing measuring, mm for crank cotter & spoke length. It's hardened steel for maximum strength and satin-chrome finish prevents for glare and corrosion for your work. Designed to provide accurate bike parts measurements, but can be also used as a professional tool for metalworking, woodworking, or engineering. Specifications: Material: steel Length: apporx 36cm/14.2in Note: Please allow 1-3cm error due to manual measurement. pls 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. Package includes: 1x Spoke Length Ruler