8 in 1 Kitty's Wonder Disposable Litter Box, Medium, 4 Count 4 units of wonder-box plus with baking soda, 17" x 12" x 4" each, made in USA 3 in 1: Odor control, litter box liner, disposable litter box Eliminates tough cat urine and waste odors, keep litter dryer, fresher longer Provides enhanced air flow, controlling odors in your cat's litter box and in your home Water and tear proof, made from 100% biodegradable, recycled paper in USA