The PowerLock 16 ft. Tape Measure has the features you need for accurate inside and outside measurements. A blade locking mechanism holds the tape measure in place so the STANLEY tape measure won't creep.
The Stanley 16-Foot Powerlock Tape Rule provides positive blade lock with no creeping. A special Tru-Zero hook does double-duty as a pivot for drawing circles and arcs. For longer life and durability, this tape measure features a Mylar polymer-coated blade, a heat-treated spring, and a chrome-plated metal case.

Trust Stanley to deliver the tape rule that's right for you. of Stanley tape rules. A convenient belt clip is fastened on back of the case. The tape blade measures 3/4-inch-by-16-feet. It comes with Stanley's limited lifetime warranty.
About Stanley PowerLock Tape Systems
With a classic design and updated features that add durability and performance, the PowerLock line of tape measures is the perfect balance between classic Stanley design and the best innovations in tool manufacture.