This green laser pointer comes with 4 interchangeable heads. You can still use this pointer in the usual manner by projecting a point. You can also screw-on, one of the heads, projecting a very beautiful patterns, reminiscent of a star field
Warning! These lasers emits radiation that can be harmful to the eye. Do not look directly into the laser aperture. Direct viewing of laser beam at close range may cause eye damage. (see laser classification)