Best Choice Products Indoor Outdoor Pet Potty Trainer Grass Mat Pee Patch Pad for Dog Puppy Training - Green 3-layer system makes cleaning effortless and keeps away odors by letting liquid drain into a bottom tray Makes it easier for owners that live in apartments or work late and want to potty train their pets Easy to clean and wash away odors simply using soapy water, ideal for small to medium-sized dogs Lightweight and durable system with realistic turf to help your pet transition easily to real grass Overall Dimensions: 30"(L) x 19.75"(W) x 1.5"(H)