This laser calibrator is made of high-grade aluminum alloy material, lightweight, high strength, corrosion resistant, and designed for long service life. Featuring high accuracy and an adjustment-free design, the calibrator uses infrared light with a straight tube for more convenient and precise alignment. The shipment includes a full set of accessories, ready to use upon arrival.Features: - Made of high-grade aluminum alloy material, lightweight, high strength, corrosion resistant, and built for durability. - Infrared laser calibrator emits bright, clear light over long distances, aiding in accurate calibration and alignment. - Highly accurate, adjustment-free design uses laser light with a straight tube for convenient and precise adjustments. - Battery compartment has a simple, sleek design; the tail cap unscrews easily for battery replacement, offering practical and user-friendly operation. - Includes a complete set of accessories for immediate use upon arrival, enhancing ease of operation.Specifications: - Name: Laser Calibrator - Material: Aluminum alloy - Color: Red, Green (optional) - Battery: 1 x CR2 battery, 3V, 800mAh (included) - Power: