ViviLux Laser 3-in-1 Rechargeable SystemThe ORIGINAL after market laser designed and tested BY sewists FOR sewists. Fits on most sewing machines. This model has less eyestrain, brighter, and easier to see. Includes a long lasting rechargeable battery so there is no need to find another outlet in your sewing area. No mounting brackets needed. All you need is the included self adhesive hook and loop tape to move it from machine to machine. INCLUDED: ViviLux 3 in 1 Laser with Rechargeable