This Nintendo Mario Kart Wii K'NEX Building Set is a must-have for any Super Mario fan. The set includes three pieces of interlocking blocks that can be used to build a racing car featuring Super Mario and Yoshi characters. The set is compatible with K'NEX and other similar brands, and is made of durable plastic material that can withstand the test of time.

The set is originally packaged and has never been opened, making it a great addition to any collection. The set is suitable for children aged 6 and above, and is a great way to encourage creativity and imaginative play. The set is a retired product and is no longer available in stores, making it a rare find for collectors and fans alike.