(2 Pack) Zilla Reptile Terrarium Bedding Substrate Liner, Green - 20 Gallon 2 Zilla brand green liners for 15/20 gallon terrariums Each liner measures 11.75 by 23.5 inches and can be cut to size as needed Ideal for juvenile reptiles because it is safe and cannot be digested like other substrates Our liners have been treated to reduce odors and are easy to clean with only cold tap water Made from absorbent, non abrasive, recycled material that will not irritate your reptile's sensitive feet