Strobe Prism Assembly: 62mm

62 mm Strobe Prism Assembly with a 51/2 x 7 in. or 6 x 9 in.
florescent orange target. The prism can be either mounted in
a 0 or -30 mm offset position. It works perfectly in low light
conditions and all the electronics are housed in the prism
canister. The battery is a Sanyo CR-1/3N; good for over 20
hours of use. Comes with a protective carry case for the target
or complete system.