Creative Gravity Play. More than a classic wooden ball run. The Wonderworld Hammer Slammer is the ultimate Trix Tracks which includes 6 jaw-dropping trick features such as the gravity hammer, tip and drop and 5 colored wooden balls. 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! Eco-Friendly: Made in Thailand from environmentally friendly rubberwood and strictly using Non-Toxic Paints, Dyes and Lacquers and Formaldehyde Free Glue. Packaging is made from at least 70% recycled paper.