RT3D-300, 300mW Red Laser Pointer, 635nm red laser, red laser pointer, with Box, Focus adjustable, Key Switch - AliExpress
UV Laser Light + Battery Kit
VTG Red Diode Laser Pointer Class IIIA 3A w/ 10 Apertures 635-680nm IMS LP301 | eBay
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Adjustable Red Dot Laser: Class IIIA, Battery, On/Off Switch 4mW [CP-TIM-219-4D-650] - $71.40 : Calpac Lasers Diode Modules Pointers and Levels, 20 years of experience specializing in industrial and promotional laser diode