Yuming Chen 5 Have purchased this dog toilet for two weeks, the following to say the use of feelings.First of all, this dog toilet can be easily changed, just lift the grid on the surface. Secondly, the density of the grid on the surface is just right, so the dog's urine rarely remains on the surface, so it is very easy to clean.My dog is a Maltese, weighing 4 kg. He was afraid to walk on the grid at first, but after three days he was completely comfortable with it. I think this dog toilet is a good value for money