The aluminum alloy laser holder is fine designed for use with astronomy laser pointers. Simply insert the laser pointer (diameter max: 21mm) and push it into the laser holder (internal diameter max: 47mm) and keep it steady until the laser switch is in the neutral position as shown. Thus the laser switch can be momentarily pressed and a rough altitude adjustment can be made. Pushing the laser further will engage the switch against the forward section of the holder turning the laser on.
Just follow the instruction and keep your laser holder steady, this durable and fashionable laser holder is a perfect accessory for taking astronomy pictures, pinpointing locations, and positioning constellations and so one. The adjustable height and a potential of 360 degrees rotation has made this laser holder workable on all series of astronomy laser pointers worldwide.