This item generates two lines on the floor at 90 degree angles for surface layout including tile, stone, brick, carpet and hardwood flooring and more. Two suction cups allow the laser level square to be mounted onto the surfaces stably. Ideal for floors, tiles, paneling, wall fixtures, wallpapering, wainscoting, finish carpentry and more. Features: 1. The right angle level generates two lines at a 90 degree angle on the floor for surface layout including tile, stone, brick, carpet and hardwood floors, etc. 2. This Vertical Alignment Guide for 90 Degree Layouts -- Calculate and rotate angles in 5 degree increments. 3. A power button device, one button can easily turn off or on the laser, easy to operate and easy to use. 4. Convenient compact laser tool, two suction cups allow the laser level to be stably mounted on the surface. 5. Ideal for floors, tiles, doors, beams, windows, wall fixtures, wallpaper, wainscoting, veneer carpentry and any job that requires precise alignment. Specification: Laser Wavelength: 650nm Laser Class: Class II Anti-dust/Anti-water: IP-54 Accuracy: +/-3/8"/100ft.(+/-1.5mm/5m) Self-leveling range: +/-4 degree Power: 3 x AA alkaline batteries (NOT Included) Low Voltage Indication: Power LED flashing Product Dimension: Approx. 200 * 100 * 52mm / 7.9 * 3.9 * 1.0inch(Please check on the picture) Package Weight: Approx. 190g Package Included: 1 x Laser Level Features Main Features:: Two lines are generated on the floor with a 90 -degree angle on the floor, which are used for surface layout, including tiles, stones, bricks, carpets and hardwood flooring. Professional accuracy:: This vertical alignment guide suitable for 90 degrees layout -based on 5 degrees as an incremental calculation and rotation angle. One -click operation:: A power button device, one -click can easily turn off or open the laser, simple operation and convenient use. 2 suction cups:: convenient compact laser tool, two suction cups make the laser level ruler stably be installed on the surface. Wide application:: It is suitable for any work that needs to be aligned accurately.