Not very strong, mine cracked on first day of use, door sticks and entirely flimsy plastic.
Way too flimsy
Just had to throw the whole thing out. I took the box outside to clean it and a gust of wind blew it a very short height onto the floor, which was apparently enough to smash a corner off the supposedly sturdy base and also break off both clips for the lid. We have had issues in the past with these boxes cracking at the bottom through normal use although those boxes were old and we thought they were just worn out. Have now dragged out the basic emergency tray, which while basic has lasted years!
Broke very quickly
Gutted to report that the door broke straight away but then while emptying the litter out, it cracked right down the side of it. Am really disappointed in the product.
Great size for 2 large Birmans. Unfortunately they 'stand up' to pee, so pee runs down the sides and travels along the joint , finally escaping and drizzling out on to the floor. Pity, but there is no overlap on the joint where the lid meets the base. Our last one was fantastic but we bought this as it was bigger and we thought they would be more comfortable with the extra pee/poo space. Not so good for us, back to the drawing board.....