This looks like a super cool building set! It has had a HUGE price drop today, too!
Wonderworld Spin and Swirl Set for $20.50 (regularly $59.99)
Description: Creative Gravity Play. More than a classic wooden ball run. Build a fun ball maze with this 58-piece Trix Track wooden ball run. The Wonderworld Spin & Swirl set includes many eye-catching tricks such as the spinning turbine, seesaw and tunnel. Easy locking system keeps your creation stable while you build your maze. With your imagination there are endless configuration possibilities. Specially designed bricks are made from a combination of eco friendly recycled saw dust and food grade plastic so it is durable and good for the environment. Combine with other Trix Track sets to create even larger tracks, more tricks and endless fun.
Shipping is FREE with Amazon Prime or with FREE Super Saver Shipping on orders over $35