Zilla Screen Cover Metal/Hinge 30X12 Fresh Air terrarium covers are designed especially for the unique needs of reptile environments. Screening promotes the healthy exchange of air needed to keep cold-blooded reptiles healthy and active, with a metal mesh tough enough to withstand the clawing of the largest pets. Perfect for habitats that require frequent access, the hinged hood allows entry without the need to lift a lighting hood. Black mesh stands up to the high temperatures heating bulbs generate. Long lasting black steel frame keeps its shape through years of daily use. For added security, accessorize a Screen Cover with screen clips, combination locks and a cord access port (sold separately).*Hinged for easy access, built for solid security*Allows essential air flow in reptile terrariumsSize: 30 x 12Overall Dimensions: L: 30.25 in W: 12.87 in H: 0.75 in