Our Premium Plastic Tray is the ideal accessory for our DoggieLawn grass pads. This sturdy dog potty tray effectively holds your indoor dog grass in place and contains any loose grass material. Large plastic trays are made of reliable HDPE plastic, this premium indoor dog potty tray with sides should last for the duration of your DoggieLawn subscription! Our FLEX-TRAYs are a cost-effective alternative designed exclusively for our XL DoggieLawn. This inexpensive, no-frills indoor dog potty tray gets the job done, effectively holding your indoor dog potty grass in place and containing any loose grass material. Made from flexible material, it's ideal for small spaces and can be easily rolled up and stored to save space.