Black markings on yellow with red stud centre markings every 16 inch. Measurements are marked on both sides and both edges, graduated to 1/16th inch. Engraved graduations on both sides. Constructed of tough nylon, reinforced with glass fibres for added durability and resistance to weather, abrasion and most chemicals. Positive locking joints and stainless steel spring hinges for added strength. Measurements are marked on both sides and both edges, graduated to 1/16th inch. Black markings on yellow with red stud centre markings every 16 inch.
