Visual- and reading spectacle-glasses protection unit is made of mixed or bio materials, where chipping of smooth surface is hindered with smooth, hard or rough, for example tarred surface with bound and standing upwards rough stones

摘要

The visual- and reading spectacle-glasses protection unit is made of mixed or bio materials. The chipping of the smooth surface is hindered with a smooth, hard or rough, for example tarred surface with bound and standing upwards rough stones. The spectacle is made of individual components, which are brought together or clipped.