Designed with the professional in mind. Secure lock helps prevent blade from creeping. Includes 16" & 19.2" stud center markings. Special Tru-Zero hook does double-duty as a pivot for drawing circles & arcs. Three-rivet, corrosion-resistant hook moves for accurate inside / outside measurements. High-visibility yellow steel blade remains rigid up to 7 ft. and is coated with Mylar for durability. Extra-tough chrome case with belt clip for easy portability. Tape Measure Type: Locking Rule; Blade Length: 25 ft; Scaling System: Standard; Blade Material: Steel.