As with all LEVERLOCK tape systems, this STANLEY 12 ft. Tape Measure has a suite of impressive features. From a push-release self-lock mechanism for controlling blade retraction to a write-on label to its tough, anti-glare blade, this LEVERLOCK tape measure is a great choice for your professional or DIY measuring needs. Automatic Blade Lock: Holds blade securely in position. Non-Marring Frictionless Base: To help protect work surface. Easy Inside/Outside Measurements. 1.5X Stronger Anti-Glare Blade.