DropTech Lenovo 300e Case A flexible case?you can flip for! Gumdrop's DropTech Lenovo 300e Case is a shock-resistant combination of thick silicone bumper skin and?rigid polycarbonate casing for Lenovo's new 2-in-1 tech. This flexible case features transparent panels on the top and bottom, allowing you to easily display asset tags, school logos, photos and more!