Powerful rotation for your Power Functions! Add an extra XL-Motor to your block creations! This super-strong motor will give plenty of power to your models, whether it's spinning a wheel or turning a system of gears.Use the XL-Motor to animate larger builds.Requires battery box, not included.To be able to understand why block has been successful for so long, just look to the name.block originally got its name from founder Ole Kirk Christiansen who combed the Danish words "Leg Got" which means "play well".He later realised that block The block set became a standard of creative play for children worldwide, unlocking the creativity to build vehicles, buildings, cities and more.Historians point to the invention of the wheel as a major turning point in world history.The invention of the block wheel had the same monumental effect in the history of block , making it possible to create cars, trucks and eventually the block train building set that is one of the most successful block sets of all time.block currently produces about 20 billion block bricks a year and has sold over 400 billion block s in their history -- enough for every person on the planet to have over 60 block s each!