This dog cat toilet is made of powder coated white steel sheet metal. Come with carrying handle. Measures 22 X 15 X 2". Please make sure measure your dog and ensure size of the toilet fit your dog size and hygiene habit. Dog training would be required. Pee is gravity fed to the container through wire mesh filtered drainage hole. Rinse mesh filter once a while to remove dog hair for proper flow. To empty the container, simple remove outlet plug and drain to regular toilet or outside. Consider add air freshener additives to further improve overal experience. Drainage hole size is 0.7" (17mm). Discharge hole is 3/8" (9.8mm).