Check the listing for details. UZBL Rugged Hard Shell Clear Case for Acer Spin 311 (R721T). Color: Clear, Condition: Open box. Listed at 19.95 USD. Designed for Dynamic School EnvironmentsThe UZBLRugged Hard Shell Case for Acer Spin 311 (R721T)) offers maximum drop protection by utilizing reinforced TPU edges that absorb drops and falls and a clear polycarbonate snap-on shell design to protect from scratches that also allows for convenient asset or barcode scanning. All ports have precise cutouts, and the devices 2-in-1 flip feature is fully functional with our case installed. Reinforced TPU corners with drop cushioning ‘Air Cells’Clear polycarbonate design for viewing asset tagsScreen side cross-bracing to prevent screen pressure damage Precise port location cutouts for full accessibility PC & TPU construction keeps the device from sliding on desktops Designed to fit Acer Chromebook 311 models: R721T-28RMR721T-62ZQ Does NOT fit the following: C733-C2EOC733-C37PC733T-C962C733-C5ASC721-25AASCB311-9H-C12ACB311-9HT-C4UM