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