Klein 910-6 Fiberglass Folding Rule, Inside ReadingKlein 910 6 Description Klein Tools' Wood Folding Rules are constructed of tough nylon, reinforced with glass fibers for added durability, and resistance to weather, abrasion, and most chemicals. Measurements are marked on both sides and both edges, graduated to 1 16 Inch (1. 6 mm). Graduations are engraved on both sides. Klein 910 6 Includes (1) Fiberglass Folding Rule Klein 910 6 Features Black markings on yellow, with red stud center markings every