Much similar to the ball tower over, the Frisco Scratch & Roll Scratcher holds a ball in the track, so kitties don’t need to scurry all over the house. Senior cats will respect it! As well as, cats of any age can fulfill their scratching wants around the cardboard Heart. https://travelagencynearme93481.theobloggers.com/39497234/alternative-to-cat-litter-fundamentals-explained