This laser calibrator is made of high-grade aluminum alloy material, lightweight, high strength, corrosion resistant, and built 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 package includes a full set of accessories, ready to use upon arrival. Features: - Constructed from high-grade aluminum alloy, lightweight, durable, corrosion resistant, and designed for long-term use. - Infrared laser calibrator emits bright, clear light over long distances, enhancing calibration precision. - High accuracy with no need for adjustments; utilizes laser light with a straight tube for easy and accurate alignment. - Battery compartment features a simple, sleek design; tail cap opens by unscrewing for easy access, convenient and practical. - Comes with a complete set of accessories, 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