Specifications: Combines a fine-tuned tape measure, a triple-positioned leveling bubble and a new laser level to provide maximum results. Designed for any situation where a straight line or accurate measurements are needed, such as measuring locations on a wall, space between hangers and level nails. 8-foot measurement tape includes of metric and imperial precision linear measures. Projects horizontal or vertical laser light beam. Locking 8-foot measuring tape. Use this multipurpose laser level for hanging pictures, installing shelving, laying flooring, hanging wallpaper and more. Laser light has an on/off power switch. Powered by 3 x AG13 button cell battery. Item Name: Laser Levelling Instrument Material: ABS Laser Wavelength: 650nm-680nm Power Supply: 3 x AG13 Battery (Included) Accuracy: 0.01 Features: Multi-function, Adjustable, Accurate Length: 18.8cm/7.4" (Approx.) Width: 3.5cm/1.38" (Approx.) Height: 6.3cm/2.48" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Laser Levelling Instrument