Downtown Pet Supply Grass Pad for Dogs, Dog Pee Pads Turf Only, 20 x 25"

This is a very well made product. It doesn't say but a paper pee pad can be placed under the grass pad that can be changed out daily instead of emptying a container of liquid urine. Or the pee pad could be cut to fit the urine capture tray. I would recommend buying a couple of extra pieces of grass so when you are cleaning one the other can be used. This is only good for firm stool. Soft mushy stools get trapped down in the grass and must be sprayed with a hose before it hardens, otherwise I think it a great product.