Upgrade your laser engraver with a 90W CO2 laser tube built for precision cutting, engraving, and marking. Operating in TEM00 mode, it produces a concentrated 0.16 to 0.24 in beam for stable, high-accuracy results on detailed designs. Measuring 49.2 in long with a 3.1 in outer diameter, the tube fits a wide range of laser engraving machines. Premium borosilicate glass withstands high heat and pressure, while a lens transmittance above 98% minimizes light loss for an efficient 10,000-hour service life. Pre-connected wires simplify attachment to the positive and negative terminals, so installation takes only minutes. Versatile enough for wood, glass, leather, paper, stone, and more, it supports advertising, packaging, crafts, and other creative projects.