Our Fiberglass Folding Rule extends up to 6" (72 ), with 7 breaks that can be locked at 90 and 180 degree angles. In addition, there is a thin, 6" extension for taking measurements in tighter spaces. The Folding Rule is constructed of high-impact plastic with fiberglass reinforcement for added strength.
Features & Benefits :
Constructed of tough, flexible high-impactplastic, with fiberglass reinforcement for addeddurability
72" (1929mm) folding ruler with a 6" (152mm)extension for accurate inside measurements