Model builders and RC enthusiasts, this Tamiya Fun Tool Series set is packed with awesome parts for your projects! You get two types of 32mm diameter sprockets - two with closed holes and two with holes bored through - plus three 32mm idler wheels, all molded in bright orange plastic. The set includes multiple lengths of metallic gray elastomer track: two 30-link sections, four 10-link sections, and four 8-link sections, so you can create the perfect track length for your specific model. Plus, you get two 3x100mm hex shafts and one 3x100mm standard shaft to power everything. The brilliant design allows you to power multiple tracks from a single shaft, opening up all kinds of creative possibilities for tracked vehicles and machinery models. The sprockets and idler wheels being the same diameter makes planning and building much easier. Tamiya's quality is consistently excellent - clean molding, precise dimensions, and durable materials that hold up well. Whether you're building from a kit or creating your own custom model, this set provides essential components for tracked vehicle projects. The variety of track lengths lets you experiment with different configurations until you get exactly the performance and look you want. It's amazing how many different projects you can create with this one well-thought-out parts set. If you love building mechanical models or customizing RC vehicles, this Tamiya set belongs in your toolbox!