Suitable for rolls with inner diameter 49-50 mm. In case you do not have a tight fit and the cat tree rotates on the supports. I suggest using adhesive tape and just wrap it a couple of times around the part you push into the cat tree. The screw holes are made for wood screws. In case you use others, the hole width is 4,8 mm.


Printed with PLA. 3 walls and 15% infill.