Laser Level Pro 3 
A handy all-in-1 tool which you must.
Features:
Ideal for any jobs that requires a Straight line or accurate measurement.
Use this multipurpose laser level for hanging pictures, installing shelving, laying flooring, hanging wallpaper and
more.
Projects horizontal and vertical, laser light beam
Locking 8-foot (2.5m) measuring tape.
Laser wavelength: 650nm-680nm.
Standard and metric rulers.
Laser light has an on/off power switch.
Laser max output: less than 0.5mW
Powered by 3x AG13 button cell
Battery
Approx Size: 185 (L) x 62(H) x 28
Approx Weight: 180g