This item includes an 8-foot tape with 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.