Build, climb, drive, slide, splash! The QUADRO Starter kit is a large-scale modular play system that is our most popular kit. There are 200 pieces including connectors, tubes, panels and screws. With these components you can build a variety of designs that are included in the instruction manual. You can also use the PC based 3-D CAD program for endless design possibilities. If you need more parts for a bigger or more complex structure, you can order additional kits or just order specific parts.