Imagine being able to build castles, Priness's towers, cars, boats and houses with tunnels to crawl through! Children will be able to build large constructions, whilst learning about shape, 2 and 3 dimensional objects, texture, team-work and role play. They will work together to put their ideas into reality. NEW Giant Polydron XL is 4 times the size of Giant Polydron and they fit together perfectly. All the accessories for Giant Polydron can be used with Giant Polydron XL.