Nook HD 7 Case - Poetic Nook HD 7 Case [GraphGRIP Series] - [Lightweight] [GRIP] Protective Silicone Case for Nook HD 7 Tablet Blue (3 Year Manufacturer Warranty From Poetic) Made of durable impact-resistant silicone Excellent grip thanks to the rubber-like silicone material and playful grid marking Stylish grooved square pattern throughout All ports, buttons and speakers have precision cut-outs for easy access Designed for the Nook HD 7 Tablet. Made by Poetic.