The Wonderworld Trix Tracks Hammer Slammer is an Innovative new concept with special bricks and creative tricks. Join the wooden blocks together to create a sturdy ball run with special tricks along the way. Hammer Slammer is the ultimate Trix Track which includes 6 trick features such as the gravity hammer, tip and drop and 5 balls. Pieces can be joined in multiple ways. 6 trick features including gravity hammers, tip and drop and ramps. Unique brick locking system. Bricks are made from recycled sawdust and plastic. Includes 5 balls. Can be combined with any other Trix Tracks set. Size H8, W32, D40cm. For ages 3 years and over. WARNING(S): Not suitable for children under 3 years old.