Snap cover for ANV SSR-40DA solid state relay

I ordered the [ANV SSR-40DA from Amazon](https://www.amazon.com/gp/product/B0753XYC81/ref=oh_aui_detailpage_o09_s00?ie=UTF8&psc=1) for a build I'm working on.
It came with a heatsink but not a cover for the terminals. The sides appear to have notches for a snap on cover which I couldn't find available separately so I designed one. Snaps in place, push the side of the window to remove.