the cut version is sized for ender 3 so 220x220x250
BUT the bambu can handle the un-cut versions for most of these because its a little bigger than an ender (and most of these are 240-250mm wide when printed at a wearable size)
You'll want to add a little bit of manual support around the bottom inch or so of the print, though, just to keep it from falling over- bambu slicer doesn't make very good rafts so it can have bed adhesion issues with tall/thin prints like headbases or masks