Rikki Knight Nana Name on Tree with Heart Design iPhone 4 & 4s Case Cover (Black Rubber with bumper protection) for Apple iPhone 4 & 4s Snap-on design. No tool is required for installation. Accessory Only. Device is not included. We can provide custom phone cases with any design for you. If you want, please contact us! Offer the Easiest Way to Install and Remove. Use rechargeable lithium polymer battery.