It's not a crowbar.
It's plastic, about 1/8" thick.  It slips my shoes on easily and slides out behind my heel when the shoe is on. I lost one of similar build that worked well for 25 years, and I expect this one will last as long.  The only change I'd make is to buy an 18" one, as 24" is a little awkward. But it still gets the job done.
Rating: 5 stars