Quarton Laser Module VLM-635-17 LPT (Small Dot Spot Laser at Long Distance) Wavelength: 635nm, Class 2

Quarton Red Circular Dot Laser Module VLM-635-17 LPT, Ultra-Far Range Red Laser, spot Size: Less Than 9 mm at 40 Meters, Less Than 22 mm at 100 Meters

HiLetgo 10pcs 5V 650nm 5mW Red Dot Laser Head Red Laser Diode Laser Tube with Leads Head Outer Diameter 6mm

ALLECIN SN74HC595N 8-Bit Shift Registers with 3-State Output Registers DIP-16 SN74HC595 74HC595 Shift Register (Pack of 30pcs)