Atomstack Window Lens Replacement Lens for S10 Pro A10 Pro X7 Pro M50 Module 10W Optical Power Laser Laser Engravers

Replacement for dirty and damaged window mirrors caused by long-term use How to use: Rotate counterclockwise to remove the old window mirror, clockwise to re-fix the new window mirror  The protective glass kit to lens, used for the protective glass replacement of 10W optical power lasers (A10/S10/X7 series model laser heads, M50 laser module) suffered by the dirt and damage upon long time use.