I could not even cobble together the column without the already playing around a cat.
Assuming now have both and the buzzing of the lower and upper mouse is perfect for the little devils, as this addition mimics the prey behavior. At the windows they are now no longer even scratched.
The buzzing is so quiet that one perceives it only slightly. In addition, I have also brought the scratch pad, which was also adopted with friends. The only downside in my opinion is, I'd like the column 1.60 m high, but I have nowhere found.
Marco
Update 4 april
The Scratching Post is still used for daily claw sharpening and now the sisal mats are glued or stapled which are probably easily solved in the middle. So durability is limited to a good year. For the price this is appropriate.