This worn box liner is perfect for a 30 gallon terrarium. It is designed for use with Zilla brand products and is made from high-quality materials. The liner is brown in color and is perfect for creating a natural habitat for your reptile. It is suitable for both adult and juvenile reptiles and will provide a comfortable and safe environment for them to thrive. The liner is easy to install and will fit snugly in your terrarium. It is perfect for use with a variety of reptiles, including lizards and snakes. The Zilla brand is known for its quality products, and this liner is no exception. It is a great addition to any reptile owner's collection.