M9 Optical Focusing Lens Holder Copper Shell Laser Collimator Lens Laser Module Head Accessories For 6mm aspherical glass lens
Color: brown
Lens Material: glass
Lens Size: 6mm aspherical glass lens
Thread type: nice thread
Metal Frame: M9*6mm
Notice:
1 Do not contact the outside of the lens immediately together with your hands, don't let the lens floor in direct touch with a hard object, so as not to scratch the surface, using a task usually used plastic forceps
2 carrying on some laser DIY activities, please read about the technical information first and protect your eyes earlier than laser ray