SmartCat Corner Litter Box High sides prevent litter kick-out Durable plastic resin construction ensures long lasting usage Litter fill line shows how much litter to use Fits in any corner without getting in the way.Works great with the Big Mouth Litter Scoop by Pioneer Pet Dimensions-18 x 18 x 9inches Triangular shape fits conveniently into corners High sides prevent litter kick out Works great with the SmartCat Scoop and Holder