Tired of"eyeballing" the exact center-point with a traditional plumb? Looking for a better way to layout complex ceilings and high bays? The self leveling vertical Laser plumb bob is your answer! Free shipping in the Continental US for this item. Although shipping charges will appear in total, they will be removed when order downloads into system. We guarantee it! dimensions- 3.15x3.15x6.3 inches weight- 30.15 oz accuracy- .15 degrees battery- (1) cr123 included.