zCover silicone rubber is an excellent healthcare grade material for keeping handsets protected in all kinds of environments. It withstands heat, cold, and UV. It is non-toxic, does not read with most chemicals or support microbial growth. zCover silicone rubber retains its origin: shape even when stretched to its limit It is tear and puncture resistant and has a very long life. Because it is safe to wash or dean with germicidal wipes, it is recommended for shared phones, especially in healthcare settings.