This laser calibrator is made of high-grade aluminum alloy material, lightweight, high strength, corrosion resistant, and designed 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: - Made of high-grade aluminum alloy material, lightweight, high strength, corrosion resistant, and built for long service life. - Infrared laser calibrator emits bright, clear, long-distance light to assist in accurate calibration and alignment. - Highly accurate, adjustment-free design utilizes laser light with a straight tube for convenient and precise adjustments. - Simple and sleek battery compartment design; tail cap opens by unscrewing for easy battery replacement, practical and user-friendly. - Shipment includes 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