Stainless steel hook Nylon cord Clip holder A tape measure in a plastic housing with a mechanical tape lock. A simple, time-tested design. Tape length: 3 m Tape width: 16 mm Dimensions (L×W×H): 63×31×58 mm Moving hook for precise measurement of internal and external dimensions: 1. When measuring from an object, the hook serves as the zero mark. 2. When measuring with the object held, the hook moves to compensate for its thickness, aligning the edge of the measured object with the zero mark.