A sturdy 63cm post wrapped in natural sisal, with a top perch to sit on and survey the room. Tall enough for a full, satisfying stretch-and-scratch, which is exactly what saves your sofa.
The clever bit is the replaceable scratch board. When the sisal wears through, you swap the board rather than binning the whole post.
What it isn't It isn't a guarantee your cat drops the armchair overnight. Stand it next to the furniture they already scratch, and a dab of catnip helps them make the switch.
