Longer RAY5 Laser Engraver Review: Great for Hobbyists – MBReviews
Amazon.com: Longer RAY5 5W Laser Engraver is an economical machine suitable for beginners the spot size of 0.08*0.08mm, App Offline Control, DIY Engraver Tool for Metal/Glass/Wood, Engraving Area of 15.7"x15.7"