HabiStat Coir Block is a compressed block of burrowing substrate for species from humid environments. 100% natural, organic and comes from sustainable resources. Biodegradable, non toxic, non abrasive. Wets quickly and holds water without draining. Directions for use: Place block into tray or bucket, add 3 litres of warm water. Top up with more water as required. Leave for 1 hr to allow it to expand fully. PH5.4 - 6.8 - Burrowing substrate - 100% natural and organic - Non-abrasive - Holds water without draining