This item includes an 8-foot tape with a laser level function. It can be applied to flat, architectural and household measurements, but also hang pictures, adjust furniture position, install doors and windows, and more than you imagine. Features: - Standard and metric rulers - Locking 8-foot measuring tape - Projects horizontal or vertical laser light beam - Wide base helps keep the tape standing upright, lightweight - Hang shelves and cabinets, tiles, and picture frames with accuracy - Ideal for any job that requires a straight line or accurate measurement - Self-locking mechanism allows the blade to be extended or retracted smoothly - Use this multipurpose laser level for hanging pictures, installing shelving, laying flooring, hanging wallpaper, and more Specifications: - Weight: 0.23kg - Laser Output: 3-5mW - Size: Approximately 19 x 2 x 9cm - Material: ABS & Aluminium Alloy - Battery: AG13 Button Battery (Included) Package includes: - 1 x Laser Level Tape - 3 x AG13 Button Battery Please Note: - Laser radiation, avoid direct eye exposure. - Misuse of the device can result in permanent eye damage. - Any correction measures that are aimed at increasing the laser power are forbidden. - A laser device is not a toy and must not be allowed to fall into the hands of children. - Please press the key button when you pull out the measuring tape, it would make the measuring tape better and easier to use.