Its a pretty nice top for my 20gal tall tank it fits great, the first one I got unfortunately came broken, I sent that one back , the second one I got had so much bubble wrap around it I could dropped it off a building and it wouldn’t have broke , when and if you do get one be careful with the edges my where very sharp I had to use sandpaper to take the edge off of the glass , also the glass is only 1/8 inch glass not tempered so this top is very delicate , the only thing I wish was the plastic they use to join the 2 pieces of glass together wasn’t so wide it ends up in the center of the tank and that’s where the light should be ,maybe if they used clear plastic so the light could shine threw it ,but I don’t regret buying this , would I buy it again.. probably not