Make sewing seams easier with our alignment laser that is hard mounted to the sewing machine to allow stability so the laser doesn’t move during operation. Sew Q is plugged in by a USB port and is adjustable by tightening a screw. The laser shines well with machine and room lights on. The laser is classified as a class one laser. Package includes: 1 Base Mount, 1 Thumb Screw, 2 Cable Supports, 1 USB Cable with Laser Attached, 1 USB Port, 1 Alcohol Prep Pad, and 2 Double Sided Adhesive Tape. 'Sew Q Laser', USB Powered, includes 4ft cord, by Sew Q Laser.