Features 1、Good Collimator: The collimator can direct align various types of aiming line by using infrared ray in straight pipe calibration. 2、Higher Accuracy: Convenient for adjusting mechanical or optical photoelectric sights, and the cold calibration has high accuracy. 3、Practical Using: This instrument can be applied to adjust the zeroer in a short time at emergency for more accurate operation. 4、Aluminium Alloy: High density aluminium alloy material has been through fine workmanship, not easy to deform and also very durable. 5、Simple Carrying: Comes with a light weight and a compact size as well, both the storage and carrying are very convenient for work. Specification Item Type: Laser Bore Sighter Material: Aluminium Alloy Battery Type: Cell Battery Package List 1 x Laser Bore Sighter Kit