Replacement Parts for Optics Expansion Kit

• Aperture Assembly
• Replacement 10 cm Converging Lens for Optics Expansion Kit
• Replacement 15 cm Diverging Lens for Optics Expansion Kit
• Replacement 20 cm Converging Lens for Optics Expansion Kit
• Replacement Light Sensor Holder for Optics Expansion Kit
• Replacement Light Source for Optics Expansion Kit
• Replacement Screen for Optics Expansion Kit