This product is exactly as stated. I have a 65 gallon aquarium with a middle support. 36 inches long 18 inches wide…. I could not fit a full 36 inch hood or glass top. Needed a two piece 36 ” top… This fits perfect! The glass top sits inside the rim of aquarium and on the support in the middle, one piece on each side. Had a hard time finding the correct top because of the tank size. So happy I found this one. Thank you