This laser calibrator is made of high-grade aluminum alloy material, lightweight, high strength, corrosion resistant, and built for long service life. Featuring a highly accurate, adjustment-free design, the calibrator uses infrared laser light with a straight tube for convenient and precise alignment. The shipment includes a complete set of accessories, ready to use upon arrival. Features: - Made of high-grade aluminum alloy material, lightweight, high strength, corrosion resistant, and designed for durability - Infrared laser calibrator emits bright, clear light over long distances, enhancing calibration accuracy - High precision, no adjustment required; utilizes laser light with a straight tube for easy and accurate alignment - Simple and sleek battery compartment design; tail cap opens by unscrewing for easy access, practical and user-friendly - Full set of accessories included, ready to use right out of the box Specifications: - Name: Laser Calibrator - Material: Aluminum alloy - Color: Red, Green (optional) - Battery: 1 x CR2 battery, 3V, 800mAh (included) - Power: 3V