Simply attach fixing loops and then attach the hose to them. Adds playful discovery of physical laws and promotes creativity. Individual conversion for new challenges possible at any time. Ball runs are a fascinating way for children to have fun building and experimenting. The Ball Run Peg Board is easy to assemble at any time to create new challenges, and helps children learn about the laws of physics through play. By trying different things, they learn about slopes, distance, speed, gravity and weight and how they all work together. All mounting hardware is included. Made of birch wood veneer. 47H x 4W x T Set of 4 Five year warranty Made in Germany. Ball/Marble Run Components (Sold Separately): 208286- 4 Wall Strips 208283- 20 Loop Attachments 208407- 8 Plastic Tubes 208314- 6 Straight Connectors 208097- 3 Y-Shaped Connectors 351317- Wooden Ball Mix 6-Piece Set (red & blue) – 1.5″2″ *** HABA is custom produced, no cancelationsor modifications allowed.Lead time is 12-14 weeks. .