The Stanley Tylon Hi-Viz Pocket Tape has a corrosion-resistant long-life Tylon coated blade with a positive blade lock for accurate measurements Shows both metric and imperial graduations Fitted with a Tru-zero hook that compensates accurately for internal and external measurements with triple rivet construction for improved strength and durability The hi-viz impact-resistant ABS plastic case is fitted with an ergonomic overmould for all-day comfort