Focusing Lens is S Version.
【Window Lens and Focusing Lens】replacement laser window lens and Focusing Lens are a perfect fit for the 20W series (X20/S20/A20 Pro) laser engraving machine and M100 laser module.
【Allowing Your Laser Module to Perform at Its Best】laser module lens is designed to ease the issues caused by cracking or dirt on the original window lens, allowing your laser module to perform at its best.
【Easily Replaceable】Detach the original lens, wipe down the laser internal parts and new lens with a clean, dust-free cloth, and then fix the new lens in place.
【Package included】1x 20W window lens, 1x 20W Focusing Lens S Version.