We have been serving cats since 2003 and have unique trees for cats of all sizes and ages. But when choosing a playground for your kitties, consider their personality. For instance, a cozy condo can help timid cats needing a hiding spot, while a tower with pom-pom balls and sisal scratching posts will keep a young kitty busy. For senior cats, check out the small furniture with houses and platforms positioned near each other so your kitty can climb up and down without jumping.