[Soft Material] side are made of flexible softness TPU, which is friendly to humans, comfort cushions allow custom . They provide the softest care for your eyes. [Good Protection]Safety glasses side protect your eyes from wind and blown particulates, minimizes injuries from wind blown particulates. Suitable for wearing outdoors and science experiments, don't obstruct your vision. [Easy to Install]Safety glasses no parts or tools required for installation, and from the glasses temple. [Fits Most Glasses]Universal glasses side that fit small to large eyeglasses bracket width is less than 12 mm. [Attention]Each pair safety glasses side shield has the signs "R" and "L", please pay attention to it. Color: Transparent Material: plastic Package Contents: 16 Pairs Eye Glasses Side Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.