It's the perfect size for 2 guinea pigs to share. Its very solid plastic. My guinea pigs have chewed on the edges, but I dont see anything missing plastic yet. Eventually, I'll upgrade to stainless steel, but for now, this is perfect. My only negative with it is if my pee pads move. The plastic absorbs the pee, so it stains super easily.
I will says, the bottom says "multipurpose garden tray". So if you want a black one like I did, you can search up that phrase to find other colors on other websites. So now I have 2 that I rotate.