Contrast Color Robot C2 Silicone Hybrid PC Tablet Case 1. Material: Made of 2-layer hard PC covers and a soft silicone outer shell, provides a comprehensive protection. 2. Standing Stand: Design the visual field to lower your angle and free your hands to satisfy your vision. 3. Internal heat dissipation: The internal heat sink design is beneficial to the heat dissipation of the mobile phone. 4. Lens protection: Higher than the camera, protect the camera, avoiding the daily scratching of the lens. 5. Precise cutouts: All buttons and ports are accessible. 6. Adjustable Shoulder Strap: Adjustable shoulder grip can be slanted and release your hands completely. This function is perfect for traveling, restaurant ordering, home product introduction, engineer outdoor operation, teacher, etc. Also, the strap allows you to hang up your tablet behind car seat for entertainment for kids.