Start creative, educational fun with Masterkidz's STEM board tube system! This construction kit is a real laboratory for studying the laws of physics, where children can build an infinite number of fairways, observe the flow of water and discover the principles of gravity in practice. You can buy a water pump for the set, which will make the game even more interesting. Coloured balls can also be released through the piping system Characteristics: - For children from 3 years of age - 84 piece set allows for almost endless possibilities of building a fairway or ball track - Made of high quality materials - Compatible with Masterkidz STEM boards The set contains 84 elements including: - Pipes - 2x120 cm, 8x25 cm, 8x10 cm - Pipe joints - 15 pcs. - Mounting clamps - 12 pcs. - Mounting screws - 24 pcs. - Water valve - 1 pc. - Colored balls - 5 pcs. - Water pouring container - 2 pcs. - Funnel - 2 pcs. - Faucet - 1 pc. - Horn - 4 pcs. Compatible with: - STEM ME15358 ME15372 ME15389 ME15365 Wall Boards - STEM Freestanding Boards ME29348