YEMARK 3-Layers Hybrid Silicone Case with Stylus, Screen Protector and Cleaning Cloth for Apple iPhone 4 / 4S &ndash; Black and White Waves / Purple Made up with high quality PC and TPU material Product is made of high quality materials. We can provide custom phone cases with any design for you. If you want, please contact us! Integrated power switch allows you to switch on/off the battery case. Only use the battery when you need it. Form-fitting durable protection