Broken down into 4 sizes each

Quarters: 1.25", 1.5", 1.75", and 2"

Eighths: 1.125", 1.375", 1.625", and 1.875"

Will ride the line with edge closest to identification size mark on any flat surface or any straight plane. Can clamp a straight edge to a section of tube/pipe on your cage or frame and can mark a straight line down the tube every time. Fits the mini sharpie and standard sharpie.

Made in the USA with USA materials.