Material: made of plastic material, these parts are wearable and have ,pulley for rc ,pulley wheel
craftsmanship: with the great workmanship, it can be used to repair and fix your handicraft or . they can be the great DIY accessories,craft pulley,pulley for DIY
Wear-resistant: these replaceable gears are stronger and wear-resistant, and can ensure long-term use,plastic model accessories,belt pulley
And : able to withstand wear and tear for reliable performance,pulley gears,diy model wheel
Teaching tool:these plastic gears are great for teaching about mechanics and engineering,mini gear,1.95mm hole plastic belt pulley