The tape that doesn't snap when you drop it or hook onto a stud.
Why Not Just Buy the Cheap One?
Cheap tape measures from dollar stores and generic brands use thin steel and flimsy locking mechanisms that break on the job. The Powerlock has a thick Mylar-coated blade, a true zero end hook, and a one-hand locking mechanism that lasts through years of abuse.
The Buy-Once Math
You'll buy three $5 tape measures over two years because the first two break, total $15, then finally get the Stanley for $14 — total $29 when you could have spent $14 from the start. Plus the frustration of measuring twice with a broken hook: priceless in the wrong way.