Wall Coaster Super Starter SetWhat makes the Wall Coaster different: All other regular marble runs are built from the ground up like a building and only include a few feet of track.The Wall Coaster is different! It is not about the number of pieces but the length of track.With the Wall Coaster you get OVER 4m x 0m in one kit!Each part is made of lightweight plastic and sticks to the wall with re-usable fun tack (the same material that sticks posters to walls).This allows the Wall Coaster to be used on almost any surface and the design can be changed many times by simply repositioning the parts with the same fun tack.Product Measures: Over 4m x 0m of track and tube Recommended Ages: 5 years & up