Whether you’re looking for a sustainable organic option for your terrarium or trying to keep humidity levels high Zilla Coconut Husk Brick can be your ideal solution. Packaged in compressed bricks Zilla Coconut Husk Brick naturally expands up to 5 times its packaged size when hot water is added. Its highly absorptive quality makes it ideal for maintaining the humidity level in tropical habitats. The soft texture is a perfect medium for egg laying and encourages natural burrowing behavior in reptiles. This product is made of 100% organic coconut fiber providing a natural substrate for your reptile and an environmentally sustainable product for you. It is ideal for tropical habitats and reptiles such as chameleons rainforest geckos frogs and toads but is also conducive to reptile egg laying and incubation. With one brick you can cover the bottom of a 55-gallon enclosure. Celebrate your pet and Rep Yourself with Zilla.