This flexible ruler is made of clear plastic and has measurements for up to 6" in length. The ruler has measurements for both inches and centimeters; inches are on the top and centimeters on the bottom. Constructed of recycled PET material and Made in USA, its size is 1.25"H x 6.25"W. Great promotion for schools, libraries, and more. These rulers are made for general and promotional purposes. While they can help with basic measuring, they're not designed for high-precision needs like medical, laboratory, or technical use.