SHB Multi-purpose Laser Level Use this Multipurpose Laser Level for hanging pictures, installing shelving,laying flooring, hanging wallpaper and more. The tape measure is an 8-foot measure that includes imperial and metric linear measures, with graduations down to 1/32” and 1mm. Features: â Laser light has an on/off power switch. â Class IIIA laser Product, 3.5mW Max Power Output. â²Note: Laser Ranging Error,that is given as "+/-2mm at 10m and 25m". â²Note: If the laser is the Vertical Level or the Horizontal Level, you shouldn't adjust the Beam. Specifications: Product Size: 7.28 (L) x 2.5(W) x 1.1 (H) Inch Product Size: 18.5 (L) x 6.2(W) x 2.8 (H) cm Packaging Size: 8.27*3.15*1.57 Inch Packaging Size: 210*80*40mm Color : Black Net Weight: 6.49oz Net Weight: 184g Package weight: 9.2oz Package weight: 260g Original box: YES Note: â²Laser radiation, avoid direct eye exposure! â²A laser device is not a toy and must not be allowed to fall into the hands of children. â²Misuse of the device can result in permanent eye damage. â²Any correction measures that are aimed at increasing the laser power are forbidden. â²The laser device does not contain any customer service components. â²Please do not open the housing as doing this would not cover the warranty. Note: â²Please press the key button when you pull out the measuring tape, it would make the measuring tape better and easier using. â²Please loosen the key button to lock the reel when the measuring tape have been drawn out the length you wanted.