This is a remake with a nicer cover , of the nice model from Bpopp on Thingiverse (https://www.thingiverse.com/thing:2671239)

This is a nice case for an inexpensive stainless meat injector that can be found at your favorite online retailer. It was designed specifically for mine but I suspect it will work with many similar models. The main body of the injector should be around 32mm in diameter, the 2 large needles are 5mm, and the smaller is 3mm.

The cover includes a nice injector logo.

Post-Printing

I used two 22mm M3 screws in the hinges to join the top and bottom. No tapping should be required, but go slow so you don't split either hinge.