Midlee Disposable Cat Litter Boxes Pack of 5-16.5" x 12" x 4"

Q: Are these as thick and strong as the wonderbox brand? i have kitty sift to be thin and flimsy.

I don’t know anything about the other brand. We use these for road trips twice a year we bring our doughier from Chicago to Louisiana and use them in the car and hotel for her cat. They are strong enough to carry into the hotel and out. Hope this answer helps