【Bionic Pee Baffle+3-Piece System, Easy to Clean】: Our dog grass pad with tray adopts a three-layer system. The dog potty grass is located on the top, the inclined bottom tray accelerates the flow of urine, which is collected through the drainage holes and guided to the bottom drawer. The upgraded pee baffle can effectively guide pets to urinate, prevent urine splashing and keep the ground clean. 【56 Drainage Holes, Super-efficient Drainage】: The dense drainage holes have high drainage efficiency and fast speed, which can accurately control peculiar smell while ensuring urination, avoiding the unpleasant smell of staying indoors. The drainage holes of other products are far apart or there is no drainage hole, which may leave dog urine between the drainage holes and produce peculiar smell. 【Unique Hemming Grass Mat, More Durable】: The newly design Hemming Grass Mat can effectively avoid the problems of dog pee grass edge shedding, cracks and dross, and there is no need to worry that pets will accidentally eat the fallen fake grass. Hompet dog litter box uses high-grade UV-resistant polyethylene and polypropylene yarns, which are durable and can withstand strong sunlight and dog urine without degradation.