- Science, Microscopes, Telescopes, Detectors, Magic
- Motors, Gears, Wheels, Pulleys
- Stevens Plastic Gears 42mm x 6mm 40-teeth 3mm ID-4
Use these plastic gears on any of your projects that might need this size. Stevens Plastic Gears 42mm x 6mm 40-teeth 3mm ID. Four in the package.