I've used one of these for years, it was a replacement for the one I have as the tape wore off and the magnetic 'buttons' fell out when I reattached the tip (see . note below). The magnetic end has a good grip on ferrous (magnetic) metals, and the tape is stiff enough to stretch several feet for handheld measurements. with pliers or a vise, don't force it back into shape like I've tried, this will loosen the magnetic "knobs". This is for reference only, not a complaint about the quality of the Komelon 7125 tape measure.
π¬οΈ Advanced 3-in-1 Indoor Air Quality Monitor with CO2/RH/Temp Data Logging and Audible Alarm - NDIR Sensor Technology
8 Review
Portable Handheld Manometer π for Accurate Pressure Differential Measurement
5 Review
Digital multimeter RGK DM-12
6 Review
π Enhanced Precision with Backlit Professional Manometer for Differential Ventilation
6 Review