This is meant to be printed to go with the ladder ball set. I had one lying around so I built this to store filament. It is made from metal and is really sturdy. you only have to print 6, there is a bed for 1 and a bed for 6. Take off the leggings and one of the sidebars for each one and you can slide it on. I ended up buying another one just to transform because I had the space. I am not sure if this works for other ladder ball sets.

But this is the exact one I bought from Target https://www.target.com/p/beyond-outdoors-steel-ladderball-set/-/A-78176123