Features:
- 7' standout
- Entire blade coated with Mylar® polyester film for added durability
- Heat-treated spring stands up to repeated use 16" and 19.2" stud center markings
- Three-rivet, corrosion-resistant hook moves for accurate inside/outside measurements
- Secure blade lock won’t creep during measurements
- Special Tru-Zero hook does double-duty as a pivot for drawing circles and arcs