Description: Triple Glazing Focusing Lens Collimating Coated Glass Lens Blue Laser Diode 405nm-450nm Features: 1. Make of glass and metal materials,Solid and durable.2. Before carrying on some laser DIY activities, please read about the technical information, first and protect your eyes before laser ray. Specification: Material: Glass, MetalColor: BlackMetal Frame: Screw Size M9 P0.5Lens Size: 0.7cmThread type: full threadFocus-length: 8mm Package Included: 1 x Coated Glass Lens Details Pictures:
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