Quantity   Component name
4 × 4 Red laser modules <5 mW https://www.amazon.com/HiLetgo-10pcs-650nm-Diode-Laser/dp/B071FT9HSV/ref=sr_1_5
4 × 3 mm screws 14 mm long
1 × USB breakout cable. https://www.amazon.com/dp/B0DKH99X1D
1 × Glass slide (75 x 25mm)
1 × Laser Pod Kit (3D printed)