This is a hole cover for your Pixel Puzzles made by the PixelPuzzleMaker tool from Bambu Lab.
It covers the side holes and gives you a more finished look on your end product.
It is compatible with my Pixel Plate Stand
Link (stand): https://makerworld.com/en/models/170967#profileId-187637
It uses the standard 3 pin holes in the Pixel Plate for sliding in to the plate.
Print as many as u need.
It takes less than 2g per cover, so it is a fast print.
Be careful when removing the cover from the plate, I recommend using a screwdriver to wedge between the cover and the plate.
I used Sunlu PLA+ Black for my cover.