iPearl mCover Hard Shell Case for 13.3" Acer Chromebook 13 CB5-311 / C810 Series Laptop (Clear) Made of USA-made high-quality translucent DOW polycarbonate material, which is shatter-proof and will protect your 13.3"(diagonal) Acer Chromebook 13 CB5-311 / C810 series laptop all around. Designed to perfectly fit the 13.3-inch Acer Chromebook 13 CB5-311 / C810 series laptop and protect ALL corners. NOT compatible with any other Acer / non-Acer laptop models, including Acer C710 / C720 / CB3-311 series Chromebook, Aspire V5-131 series, etc Designed with Retractable feet at the rear bottom to let you type more comfortably. It also helps to prolong your laptop's life with BETTER heat ventilation from features like retractable feet and more wider ventilation slots. 2-piece light-weight (9 oz or 260 g) shell easily snaps on and off. NOTE: Before placing order, please make sure to verify your laptop model number as this case is MODEL specific and not interchangeable.