The Klein 910-6 Fiberglass Folding Rules with inside reading has professional extra-quality features that have made the Klein name famous for hand tools. It is constructed of tough nylon, reinforced with glass fibers for added durability, and resistance to weather, abrasion, and most chemicals. This multi-purpose ruler folds down to 8 inches with riveted lock joints that are made for long wear and maintained accuracy. This strong, 6-foot (183 cm) ruler has engraved measurements on both sides and both edges that are graduated to 1/16-inch. This ruler has black markings on yellow, with red stud center markings every 16 inches. The Klein 910-6 Fiberglass Folding Rules with inside reading is sold one item per package.