Zilla SRZ100011546 Fresh Air Screen Cover with Center Hinge for Pet Cages, 36-3/8 by 12-3/4-Inch, Black Fresh air screen cover with center hinge Allows essential air flow in reptile terrariums Hinge eases use with lighting hoods Withstands high temperatures from heating devices Measures 36-3/8-inch length by 12-3/4-inch width by 3/4-inch height