Large Space: Our cat litter box has enough space for cats up to 25 pounds. It can provide a wide space for cats to move around, and cats can turn around and get in and out of the basin freely. It also ensures the cat's private space, bringing the pet a more comfortable living experience. No Leakage: Sidewalls are fitted with sealed TPR strip plugs to prevent side leakage from male cats. Side opening is angled to prevent urine residue, and the back is optimized for a large elevation to prevent urine residue. The bottom is upgraded to a fully closed bottom plate. It can better ensure the cleanliness of the floor. 360 degrees without dead angle, 100% no leakage. One-Way Door: The front door of the litter box is only used for in and out, to prevent the litter spill outside, the cat could go in and out through the top door at will, which is benefitial to exercising the cat's body and increasing the fun of life. The hollow holes at the top of the litter tray filter the litter, so that when the cat jumps out the litter will fall back into the tray without causing a mess and reducing the number of cleanings. Drawer Design: The litter tray has a pull-out drawer structure, which enables daily litter changes and cleaning by pulling the tray at the bottom, so that it is easy to use, more portable and efficient, saving time and energy and providing a comfortable living and leisurely living environment for cats.