Tape and Hook: Impact-resistant steel tape with millimeter markings. Tape width: 16 mm. There are distance markings at the beginning and end of the bar. A hole in the rod allows for marking arcs with a diameter of up to 3 m. Diameter and millimeter scale on the same side. Shape and construction: Sturdy ABS plastic housing. Foldable extension cable for measuring gaps. The tape and extension cable can be replaced with new ones. Accuracy Class 2: ± 2.3 mm error per 10 m. The device is used for: measurements on hot surfaces, work on ventilation ducts, plumbing measurements, and simple measuring tasks.