Below are the available bulk discount rates for each individual item when you purchase a certain amount
Multiple caps, each with a different lens, provide 4 different special effects (plus the straight-through normal beam effect). We call them "wide grid, tight grid, concentric circles, and overlapping circles." Roll the laser to rotate the pattern, or twist the cap and watch as thousands of laser points weave and spin and turn their way through each other in mesmerizing displays. Amazing to watch in a dark room at night!
Blue-violet handheld lasers are excellent for fluorescence excitation, Raman spectrum, biomedicine, special effects, etc. -- or just as an attractive violet laser.