Exo Terra jungle earth is substrates in natural terrariums have many function and is not only there for decoration purposes. Play an important role in the determination of the terrarium"s microclimate. Exo Terra jungle earth substrate is 100-percent natural substrate as ideal for natural terrarium set-ups. It is perfect for humidity loving reptiles and is nutritional for live plants. It stimulates natural digging and burrowing behavior. This product weight is 1.9-pound. Available in 4-quarts.