LliVEER 3D Brown Coffee Ice Cream Silicone Back Cover Case for Apple for iPhone 4 4G Snap-on design. No tool is required for installation. Provides protection and prevents scratches,chips and dirt from accumulating Integrated power switch allows you to switch on/off the battery case. Only use the battery when you need it. We can provide custom phone cases with any design for you. If you want, please contact us! Creative Style, nice fitting