ROOLY is the largest litter box for rabbits/bunnies. ROOLY litter box has ample room for two rabbits and larger rabbit breeds. We recommend small hole grate unless you have giant breed bun(s). Poops would fall through and less hay waste.  Dimensions: 26.5''W x 19"D x 7.5"H. Heightened Grate sits 3.5" above floor. LARGE Grate openings (holes) are exactly 0.59"W x 1.38"D. SMALL Grate openings (holes) are exactly 0.51"W x 0.59"D.  Disclaimer: ROOLY's grate was designed for bunny feet in mind. It is not intended for animals with smaller feet like Guinea Pigs, Ferrets, Gerbils, Rabbits younger than 10 weeks of age. Materials: PP Plastic (Base) ABS Plastic (Grate) Cleaning: Smooth surfaces are easy to clean. Can be used with any bedding of choice including litter pads. We recommend using water + vinegar for deep cleaning. Price: We get it. Some people may feel it's a bit pricey for rabbit litter box. The truth is it costs more to make high quality product. Over the years, we purchased countless litter boxes from the market place...unfortunately they all had issues and didn't fit our needs. Rabbits should not be considered as cheap and easy pets, in fact, they spend at least 50% of the time eating on the litter box.  A good litter box will make your bun(s) happier and your life as bun parents easier. We believe a solid product is worth the investment!  *Follow us on Insta rooly_buns for the latest product updates :) *International shipping may subject to custom fees, which is charged and collected by the local government and is out of our control. (Patent Pending, 2023)