This is a lid for the vat on the Phrozen Sonic Mini 4k, while it's still on the printer. I use this to just cover up the resin in the vat, when not using the printer for a few days. This might fit on the Phrozen Sonic Mini as well, but I haven't tested it.
The lid is a snug fit, but has been shaped such that it should slid down over the screws without having to remove anything. There are two files, one with a Phrozen logo, and one without.
Update: Added the split files, this might make it possible to print on the SM4K itself.
The author marked this model as their own original creation.