Here's the perfect tool when straight lines or accurate measurements are important. Three ways to measure: plumb, level and 45 degree angle. The 8' locking tape measure has the standard and metric measure, as well as the rulers on each side of the laser. The tape measure is 1/2" scale with 1/32" increments. There are horizontal and vertical laser markings with a power on/off switch to save battery life. The laser is a class 3A laser. The level comes with three LR44 batteries. Four color digital imprint and doming included in the price.