1 Set Laser 12mmx40mm Diode Housing & 20mmx27mmx50mm Laser Module heatsink DIY for TO-18 5.6mm LD
https://www.vogueparade.com/shopping/EN/200001493/1/10000051884387/1-set-laser-12mmx40mm-diode-housing-and-20mmx27mmx50mm-laser-module-heatsink-diy-for-to-18-56mm-ld//