100% natural, HabiStat Corn Cob Substrate contains natural corn cob granules from heat treated corn cob kernels. Suitable for species from desert or dry environments and should not be used in wet environments. Our range of HabiStat substrates are all now packed in 100% recyclable and biodegradable paper bags. Available in 5L and 10L Bags and Bulk. Directions for Use: Spread substrate evenly across vivarium base ensuring a depth of 2" (5cm). Do not overfill if using underfloor heating. Spot clean as required and replace regularly.