The Midlee Corrugated Plastic Guinea Pig Cage Liner is a must-have for any DIY guinea pig cage. This plastic cage liner is made of high-quality, durable plastic and is blue in color. It is also corrugated in design and has a double-layered structure. The bottom layer is made of highly flexible plastic while the top layer is more rigid and durable. The corrugated shape allows for maximum ventilation and makes cleaning the cage easier. The Midlee Corrugated Plastic Guinea Pig Cage Liner is also easy to install and is a great way to keep your guinea pigs safe and comfortable.