IKEA Komplement Drawer Brackets

I use a lot of Bambu filaments and I left them in the box until I need them, so I was looking for a way of storing the original Bambu spool/refill boxes in a simple and cheap way. This allows you to store 21 boxes with just an IKEA Komplement drawer of 75x58. There's a bigger one if you want to try it out. With this brackets, you'll be able to put the drawer on a 60cm deep shelf, like I did on my storage room. You'll also need: 4x M6x144x M6x30 (it actually depends on your shelf thic