This is a kind of fine quality laser level and tripod set. 4D 16 lines for finer positioning, with self-leveling system, flexibility and stability. And the tripod stand is made of thicken aluminium alloy material, 3-heights adjustable, with bubble-level to help you to check whether the tripod is horizontal or not. Perfect for a variety of uses, including flooring, tile layout, paneling, wallpapering, stenciling, wainscoting, finish carpentry, wall stud layout and partition installation. You can have a try. Specifications: Name: Laser Level and Tripod Stand Set Main material: plastics metal+aluminium alloy Laser Level: Battery: 2 * lithium battery, 3.7V, 2400mAh (included) Laser ray: 360°*4, 16lines(40) Angle direction: 4 surface, 8 lines Display: LED display Wavelength: Green light 532nm, 10m both sides, 5m each side Laser lines accuracy: ±1mm/8m Self-levelling-range: ±3° Alarm angle: 3° Waterproof grade: IP54 Working-range: about 25m in diameter Working time: about 5 hours Green