Designed with the professional in mind Secure lock helps prevent blade from creeping Includes 16 and 19 2 stud center markings Special Tru-Zero hook does double-duty as a pivot for drawing circles and 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