50 Cat Litter Box Liners Jumbo 37" x 18" Thicken Tear Resistant Litter Liners Bag Heavy Duty Kitty Pan Liners Disposable Extra Large Litter Box Bag. 【37" x 18" Jumbo Size】Each bag contains 50 jumbo cat litter box liners, its size is 37" x 18" x 3 mil, and it fits most litter boxes less than 37" long + wide.
eBay