The cardboard box is great, no leaks, but the tray makes the patch more attractive.
Looks neater, beautiful!
We have a Yorkie and purchased the standard patch with black tray. Our yorkie loves it and ***** train has been easier. I do recommend the black tray or wooden box because dogs tend to chew on the cardboard. Our yorkie is 9 weeks old and I bought the black tray and wooden box . For right now we are using the black plastic since she’s so small. Perhaps latter we plan to transition into the wooden outer box. You really don’t need both.
I had just been using the cardboard tray with the wood sleeve outside and it always looked horrible and if it rained, the cardboard would get warped and gross. Ordered the tray and although it hasn’t rained yet, it looks much nicer and is cleaner. I can also water the patch without worrying about the cardboard. Definitely recommend the plastic tray for outdoors.
Great! Both pooches using!