Powerlock 3/4" x 5M/16' English & Metric Tape Measure, Mylar Polyester Film Extends Life Of Entire Blade, Chrome High-Impact ABS Case Is Job Site Tough, Secure Blade Lock Won't Creep During Measurements, 16" & 19.2" Stud Center Markings Simplify Framing Jobs, Corrosion-Resistant Tru-Zero End Hook For Accurate Measurements.