School Lab Laser Optical Set

School Lab Laser Optical Set

line light source (only use 3 v battery power supply, with the magnet can be adsorbed on the iron plate, five switch control line)
the double convex lens a (with magnet)
double concave lens a (with magnet)
a trapezoidal lens (with magnet)
Five and a half round lens (with magnet)
a cuboid lens (with magnet)
a triangle lens (with magnet)
2 stents (black)
bracket screw 4