Introduce children to STEM building with Buki Marble Runs and let their imaginations take over.Marble Runs is a marble run that you can build for hours of fun. Join corner pieces and tubes, add turnstiles, levers and wheels to build fun and unique marble runs.Featuring 80 pieces and 10 marbles, this marble run allows children to build their very own maze and encourages STEM education whilst having fun!. Marble runs. Construct your own maze. 80 pieces. 10 marbles. Suitable for age 5 years +. Weight 900g*Please note that this product is delivered direct from our supplier and may take a little longer to arrive