The mobile phone shell is a powerful, anti - and - and - toxic, environmentally - friendly silicone material, which is used to inject the mobile phone shell. Because is silicone, so it is soft and tough and not easy deformation is not easy to fade, durable. It uses unique to the four corners of the hollow design, slow down the violent impulsive force generated when the phone landing, after professional shockproof test right in order to reduce the effect of impact force of 80%, and the appearance according to human body engineering and design, convenient moderation grip.