Super Pet CritterTrail Lazy Look-Out Accessory Kit: * Expand Critter trail habitats with this functional accessory * Bubble wave Fun-nel - comfort grip that is safe for your pet"s paws * Dual purpose design makes a safe nesting area or a great look-out tower for your pet * Removable twist-lock cover provides easy access and trouble free cleaning * Features Super Protect Antimocrobial Technology to provide a healthier, cleaner accessory for your pet * Universally connectable so it easily attaches to all CritterTrail, Habitrail, and S.A.M. systems