1.To protect lens head with high ABS plastic 2.could provide youall size from 39-82mm 3.lens hood,lens shade,sunshade

[ hoodlittle knowledge ] :

1. Hood can avoid direct sunlightlens, can reduce quantity of light production, improve the imagequality.

2. Snow can block and dust splasheddown in the lens, prevent lens for wet and producemildew.

3. To prevent external forcecollision damage lens, can play the role of protection lens and acamera.