Spring Case case for Realme C31 silicone cover with frame blackRealme C31 case from the Spring Case series in black The Spring Case series is made of a thermoplastic and durable material that provides it with great flexibility. The cover is adapted to the Realme C31 , perfectly protects the phone against damage due to falls or scratches (for example, by keys carried in a pocket). Raised edges around the screen and rear camera protect the phone from scratching these elements when it is placed on a flat surface. It