Description: 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: Generates two lines on the floor at 90 degree angles for surface layout including tile, stone, brick, carpet and hardwood flooring and more. Great alignment guide for 90-degree layout-calculate and turning angles in 5-degree increments. One power button device, simple operation, easy to use. Two suction cups allow the laser level square to be mounted onto the surfaces stably. Perfect for floors, tiles, paneling, wall fixtures, wallpapering, wainscoting, finish carpentry and more. Specification: Condition: 100% Brand New 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 * AA alkaline batteries (not Included ) Low Voltage Indication: Power LED flashing Size: Approx. 19x13.5x5cm / 7.48x5.31x1.97in Weight: Approx. 183g Package Included: 1 * 90 Degree Laser Level Note: Please allow 0~1 inch error due to manual measurement. Thanks for your understanding. .