KastLite Egg Crate Panel 3-Pack in Black | Polystyrene | Nominal 2' x 2' with 1/2" x 1/2" x 3/8" Cell Size | Manufactured by American Louver

Well packed and arrived safely, I wanted a 2X4 tile left open and 2 of these fit nicely in the space. I also wanted to remove a 2x2 air diffuser so the air would blow straight down. One of these fit nicely so the air duct was not visible

This is exactly what I ordered, except that I got FOUR sheets when I only ordered three! I'm thrilled with this because I almost immediately regretted not getting a spare sheet, but didn't want to order another just in case.The items themselves were very well packed and undamaged despite the scuffs and dings on the outside of the box. They were tightly bound together with cellophane, cardboard was layered on all sides, then placed in a box, then reinforced paperboard "L" angles were taped over ALL the edges of the box making it incredibly tough. I could throw it down the stairs if I wanted and be confident that no damage occurred. I was really nervous about this, as the brittle plastic could be easily damaged in transit, but the people packaging this really did well.The plastic sheets are exactly as described in color and dimension. On 3 sides the edges are smoothly factory finished, with the fourth edge missing the smooth border. If using these as a complete unit this might be problematic as the jagged unfinished edge is a bit sharp and just looks unfinished. The other three edges are nice though. The sheets are very rigid, having almost no flax at all.I am new to this product, so I have no other brands to compare to, but I am satisfied.I am using this for a 90 gallon vivarium as a drainage layer and reinforcement structure to build a custom background, so I must cut it into pieces to make use of it. It cuts very easily with the awful old tin snips I have. They won't cut tin, but this they breeze through. Using wire cutters (which lack the leverage assistance of the tin snips) it takes a bit more muscle, but is still very manageable. The cut edges are a bit sharp, as I was warned they would be, but it's nowhere near as bad as chicken wire or hardware cloth, so if you're reasonably careful you can get through it unscathed.Shipping did take longer than expected, but given the pandemic, the awkward package size, and the upcoming holiday I can hardly fault them for it.