Atomstack Window Lens Replacement Lens for A20 Pro S20 Pro X20 Pro X30 Pro M100 M150 Module Laser Engraver

Main Feature: The window mirror effectively protects the focusing mirror, sorting the problems caused by dirt and damage upon long-time use.   Applicable models: Atomstack A30 Pro, A20 Pro, X20 Pro, X30 Pro. S20 Pro, M100, M150 Laser Module. More details: First remove the current window lens. Then wipe the laser and the new window lens with a piece of nonwoven. At last screw the new window lens up clockwise.