actually where u preffer ur dog peepoo?? in a cage?? i think is better..coz its very easy to clean somemore their hair cannot get dirty....at 1st u can take a cloth n clean his pee...then put it in the tray tat under the cage..after u ask ur dog go inside the cage...but hv to try many times la..coz they smell the same smell so tat they can pee inside the cage..good luck!!!