Multi-function laser levels: guideline, laser beam, ruler and tape measure (8 feet) 4 in 1, designed for every situation where a straight line or measurements are needed.3 layers: the laser level with a level, welding and a 45 bubble to determine the horizontal and vertical level. For more accurate results.Suitable for hanging pictures along a stairwell, hanging mirrors, installing curtain rods and other household items; the laser part can be used separately and alone; indoors only (ideal for gift from father).Easy to use: it is equipped with a selection button on the front. It controls the switching of vertical laser line, horizontal laser line and cross laser line mode, is suitable for different modes of use, more accurate and more stable.FeatureProjects a vertical and horizontal beam of laser lightBuilt-in 8 foot tape measure, with imperial and metric scale. Accuracy to 1/32 and 1 mm.Class IIIA laser product, output power less than 3.5mWTwo-level bubblesThe laser light has an on/off switch.Note:Laser ranging error, which is given as +/- 2mm at 10m and 25m.If the laser is the vertical level or the horizontal level, you don't need to adjust the beam.Batteries not includedFeaturesThe color blackProduct size: 20 (L) x 2.5 (W) x 6 (H) cmPackage size: 22.5*8*4cmNet weight: 190gWarning1. laser radiation, avoid direct eye exposure