This laser calibrator is made of high-grade aluminum alloy material, lightweight, high strength, corrosion resistance, and designed for long service life. Featuring high accuracy and an adjustment-free design, the calibrator utilizes infrared light with a straight tube for 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 calibrator emits a long-distance, bright, and clear laser beam to assist in accurate calibration and alignment. - Highly accurate, no need for adjustments; uses laser light with a straight tube design for improved precision and ease of use. - Simple and sleek battery compartment design; tail cap opens by unscrewing for easy battery replacement. - Complete set of accessories included for immediate use and convenience.Specifications: - Name: Laser Calibrator - Material: Aluminum alloy - Color: Red, Green (optional) - Battery: 1 x CR2 battery, 3V, 800mAh (included) - Power: 3V