Strap adjuster / stop buckle for 32mm strap

I needed a cheap and fast way to be able to remove and reinstall the end clip thing on a 32mm belt (1.25mm thick), and this is the result. I've used the STL provided to lift about 10kg without it breaking, printed upright like in the STL.
Despite being designed as a stopper more than an adjuster, it also works as the latter.

Included step file if you need to modify it, adding more material at the top and bottom will make it stronger since it seems like all the stress bending happens there be