Flexible side shields offer the side impact protection needed to meet ANSI Z87.1 - 2003 standards for eye and face safety. Rubber side shields for eye glasses are made of a soft flexible vinyl and fit most safety glasses or eye glasses. Side shields for glasses fit around the shape of the lens of your safety eyewear or prescription glasses and they easily slide onto thin temples and don't require any parts or tools. If you need extra protection on your safety glasses these sideshields can easily be inserted in less than 30 seconds. One Pair per pack.