Catlog Board 2 has also been released, but I inquired and was told there is no difference in sensing performance. There is a crack near the middle, but it doesn't affect the operation. I own another one, and it has a crack in the same place, so it might be due to aging, but there's no stickiness. The exterior looks clean without any discoloration. White plastic toilet mat made by Catlog, with non-slip features for high stability. - Brand: Catlog - Color: White - Material: Plastic - Features: Non-slip - Scratches: Minor scratches Thank you for viewing.