Create dynamic and functional models with this set of rubber transmission belts and plastic pulleys. The components are designed to provide smooth and efficient power transfer, making them ideal for toy making and DIY projects. The variety of sizes and types included in the set allows for endless creative possibilities. Features -Color:Multi -Material:Plastic, rubber -Size:2.50X2.50X0.30cm/0.98X0.98X0.12in -Durable and reliable: the rubber transmission belt is built to be durable and reliable, ensuring long term use for your models -Noise minimization: the plastic pulley and rubber band combination helps to minimize noise, providing smooth operation -Easy assembly: these model accessories are designed for easy assembly and disassembly, simplifying your diy projects -Wide compatibility: this pulley kit is compatible with various devices, offering versatile use for different projects -Efficient transmission: the stable transmission provided by this set enhances the efficiency and performance of your mechanical setups Package list: 80 x pulleys 40 x rubber bands 2 x transmission belts