replacement buckle for cressi fins

I was told by several dive instructors now that these detachable buckles of my cressi fins are one of the parts that get lost by almost every diver.

That's the reason I designed a 3d-printable replacement buckle so you can always have one for spare.

My design looks a lot more bulky than the original one but thats just for more sturdyness as 3d printed parts tend to perform worse when it comes to that point. Also the angle of the "front slope" is a lot more steeper to make it printable in d