Chess Set Gridfinity box

I made this box to Keep fragile Chess pieces in one place and to keep them in one piece, be fair warned this is my first 3D model so there may be flaws, please let me know if you have any problems with the file, the box in the shown photos is my first design and had flaws, i am hoping after my redesign that they have been fixed but then again let me now if not. Excuse the photo with the lid i just used it as an idea that it can be used with a lid the model has imbedded magnet holes for magnetic chess pieces (I made my own version of @chessmasters chess pieces with magnets in them and the board, Will be published shortly ) , they use 16 5mm x 2mm magnets for the chess pieces, if you chose to use the magnets on the bottom of the tub they are the same size, if you don't plan on using them you can print with supports and it will fill the hole but leave the filling removable for use later ( use standard supports ), most of the magnets fit snuggly however if you have problems feel free t