Teaching tool:these plastic gears are great for teaching about mechanics and engineering,plastic belt pulley,plastic gear
Widely applicable: suitable for a wide range of scientific and education equipment, providing versatile compatibility,pulley for rc car,diy model wheel
Material: made of plastic material, these parts are wearable and have ,multipurpose pulley,pulley for DIY
Outstanding workmanship: reasonable design, stable and practical, will bring you a using experience,plastic pulley wheel,pulley gears
Compact size: small parts, easy to use, great model making accessories for all kinds of cars, , etc,pulley wheel,motor pulley