Silicone Prism Case - Crystal Protection. The Prism Case silicone cover is made from a modern type of rubberized silicone, a thermoplastic elastomer. This silicone is safe for human health and does not have a detrimental effect on the environment. Constant use of the phone in the case does not cause it to overheat, unlike cheaper silicones. The Prism Case silicone is a transparent, resilient, and fairly flexible case. Over time, it does not stretch or become cloudy. The inner volume of its back panel has a crystal structure. Although the case is not glossy, the crystal facets create an effect of shine, color transitions, and glow in the sun. The dimensions of the Prism Case precisely follow the contours of the phone and its functional ports. Small borders around the camera, speakers, flash, and touchscreen effectively protect the phone during falls and impacts. The volume buttons and sleep button are covered, providing complete protection against water and dust. Ports are open and easily accessible. The Prism Case silicone is