The Exo Terra Terrarium Screen Cover is an easy-to-install cover for aquariums and glass tanks. The strong metal screen provides ventilation and allows necessary UV penetration while ensuring reptiles, feeder insects , and other small animals are safely secured. Screen Covers are available for most aquarium sizes. Use Exo Terra Screen Cover Clips to help ensure covers stay secure. Key Features : Easy to install Durable metal screen Maximum UV-penetration,