Detail produk dari TPU Protective Back Cover Skin for iPhone 4 4S (Yellow) Description:TPU is soft and easy to install and remove. It is anti-slip shockproof, fashionable with bright colors.TPU material biggest advantage: A little hard than silicone material, so it is more stylish. Compare to the plastic, it is relatively soft, so it is easy to install and remove. The anti-drop features is more outstanding!The back side is made of pure transparent acrylic which is super anti-scratch and perfectly embodies the beauty of the original!Frame is made of high quality TPU material. Transparency can reach 100%. Dust plug prevent dust from entering.