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 laser 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: - Constructed from high-grade aluminum alloy, providing lightweight durability, high strength, and corrosion resistance for extended service life. - Infrared laser technology delivers bright, clear, and visible light over long distances, enhancing calibration precision. - High-accuracy, no-adjustment-required design utilizes laser light with a straight tube for improved ease of use and accurate alignment. - Simple and sleek battery compartment design; the tail cap unscrews easily for quick battery access, offering convenience and practicality. - Complete accessory set included in the package for immediate use and enhanced usability.Specifications: - Name: Laser Calibrator - Material: Aluminum alloy - Color: Red, Green (optional) - Battery: 1 x CR2 battery, 3V, 800mAh (included) - Power: 3V