The New Age Pet Kitty Kase is made with ECOFLEX, a proprietary composite blend of recycled polymers and reclaimed wood fiber by-products. The ECOFLEX material is non-toxic, eco-friendly & impervious to moisture & odor, making it the perfect material for your pets furniture. The Kitty Kase features a hidden pathway for kitty to explore, play and hide. Two shelves not accessible from kitty's play path to display photos or keepsakes. NewAgePet products are easy to assemble, easy to clean & easy to LOVE!