The Needle Laser accessory provides a guide for accurate needle placement at the start or end of a quilting design. The laser light is adjustable for precise alignment with the machine needle. Compatible with most longarm machines with USB ports at the front of the machine. Don’t have a USB port available? No worries! This accessory can be installed on any longarm or domestic machines with the addition of a USB 2.0 wall charger and USB 2.0 Type-A male to female extender cable (not included). This tool is especially useful for robotic system users (like Pro-Stitcher) to create accurate placement of designs.