4pcs DIY 5.6mm Laser Diode Housing Aluminum Host Case with Collimator Lens for 405nm 450nm 650nm 780nm 808nm 980nm Laser Parameter Material:
Aluminum Lens: Plastic 200nm-1100nm Dimensions: Ø12x30 mm 5.6mm (TO-18) Diode Housing for Laser Diodes! Spring included! Diodes Housing
Can help you get a firm contact Package of 4 5.6mm Laser Diode DIY Metal Housing Case w Adjustable Dot Focus Lens 12x30mm