100% new and high quality Hang shelves and cabinets, tiles and picture frames with accuracy. Projects horizontal and vertical laser light beam Locking 8-foot measuring tape. Standard and metric rulers. Perfect for any jobs that requires a straight line or accurate measurement. Use this multipurpose laser level for hanging pictures, installing shelving, laying flooring, hanging wallpaper and more. Laser light has an on/off power switch. Laser max output: less than 0.5mW Powered by 3*AG13 button cell battery During use, vertical lines appear horizontally and horizontal lines appear vertically. This is normal and is not a quality problem! Colour:black Material:plastic Package Contents: 1 x Laser Ruler Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.