MPERO Collection Flexible Silicone Skin Cases for LG Viper 4G LTE / LG Connect 4G - Hot Pink , White , Black Specially designed Flexible Silicone Skin Cases for LG Viper 4G LTE / LG Connect 4G. Made from fully treated silicone. No mixes or blends. Chemically stable, even when impacted by heat or environmental impact. Insoluble in water, corrosion resistant, a virulent insipidity. MPERO is a protected trademark.