12 Gauge Red Laser Bore Sight Boresighter with 2 Sets of Batteries

Class IIIa 635nM Less Than 5mW, Avoid Direct Eye Exposure to Beam.
High accuracy laser bore sight to help to zero your scopes and sights quickly.
Sighting range of 15-100 yards.Wavelength: 645nm, 632nm
Operation: On/Off Remove battery
Laser Type:Visible Red Laser
Battery: Included 2set(6 batteries) last up to about 6 hours per set
Product Dimensions:2.4"L x 0.87"W x 0.87"H
Item Weight: 2 Ounces
Color: Red color(Aluminum)