We are pleased to introduce our new unique patent pending Litter Box. Top and/or side entry to allow your cat even more options in a biodegradable litter box. All pieces use the same moisture barrier interior to allow the litter to perform it's job. Owner designed and tested, lasts one cat one month. Tall and large size, 17in.x17in.x15in.TALL. Use with or without the lid to allow your cat to become accustomed to a top entry litter box. The lid incorporates an optional 9 inch diameter perforated circular opening . The flex pad can be used to cover the litter for discreet disposal, or to reinforce the bottom if using with multiple cats. You can also invert the box to lower the opening for elderly cats and kittens. (One lid, one base and one flex pad per set)3 sets per case order. Made in the USA.