The latest technology in reptile egg incubation. The specially designed tray allows for maximum air flow in a humid environment without contact with any substrate that may contain contaminants. This has been used widely with geckos but is also suitable for small dragons, small monitors and small skinks. The central dividers allows eggs to be separated for identification of hatchlings. The bottom of the clear container is filled with a moisture retaining substrate (not supplied) such as perlite, vermiculite or water crystals to create maximum humidity with minimal mess. The containers have high clarity and are totally biodegradable when you decided to replace them. Prior to use, just make 1-2 small 2mm holes in the lid to allow some gas exchange.