This set of model accessories includes everything you need to bring your DIY projects to life. The rubber transmission belts and plastic pulleys are crafted to ensure smooth and reliable performance. ideal for toy making and educational purposes, these components help you build functional and engaging models with ease. Features -Color:Multi -Material:Plastic, rubber -Size:2.50X2.50X0.30cm/0.98X0.98X0.12in -High durability: the rubber transmission belt is highly durable, providing a solution for your -Noise reduction: the plastic pulley and rubber band combination effectively reduces noise, ensuring smooth operation -Easy to use: these model accessories are designed for easy installation and removal, making your diy projects straightforward -Versatile applications: this pulley kit can be used with various devices, offering multifunctional use for different projects -Stable performance: the stable transmission provided by this set improves the efficiency and performance of your mechanical setups Package list: 80 x pulleys 40 x rubber bands 2 x transmission belts