10x 7mm Laser Collimating Focus Lens \n\nParameters:\nWavelength: None\nMaterial: Plastic\nSize: diameter 7mm\nFocal Length: 6-8mm\nAttribute: Optical Lens\nSuitable for low power laser modules of all wavelength\n \nApplication:\nPlease keep the lens clean! Used as collimating lens or focusing lens for all kinds of laser diodes\n \nBe sure the operator has experience in optics DIY or testing.\n \nPackage: 10x 7mm lens\nShippment:\n1.Every parcel will be registered with tracking number. \n2.International shipping requires complicated shipping procedures (such as both countries customs, transit stations etc.), also will be affected by many factors, such as holidays, weather conditions et. If the transportation time is not normal, please contact us.