Stored in a home garage. Unopened. Laser guide for electric circular saws, enabling precise cuts. - Model Name: DS-LC1 - Diameter: 165mm/190mm - Compatible Models: Electric circular saws - Laser Wavelength: 650nm - Size: 19.15 x 49.8mm Batteries are included, but due to garage storage, their condition is unknown and they may not work. If they don't work, please replace them with new batteries. This is a long-term storage item, so please understand that it is sold as-is, with no returns. Thank you for viewing.