4 in 1 stylus laser led pen this 4 in 1 stylus laser led pen can be used non may different touch screen devices as well as a versatile design making it ideal for many different properties 4 in 1 stylus laser led pen stylus red laser pointer led 5000 7000 mcd black medium ball point pen overall size 120x98mm supplied with 3 lr41 batteries 4 in 1