The pump is easy to operate by pressing a button that lifts the marble and secures it with a pawl. The next marble pushes the previous one up one level so that the tubes fill up until the first marble returns to the beginning. The pump can be flexibly installed in the track in combination with the rotating top and adapts to any marble track construction. The transparent tubes are five blocks high so you can see that there are already many colorful marbles in it and the cool marble starting position gives the marble the necessary momentum to start again on the track. The set includes the marble elevator along with a total of three tubes and 18 colorful marbles. - 1 Pump - 3 Tubes - 1 Start position - 1 Flexible top - 18 Marbles All 24 parts and components of the Hubelino Marble Lift are compatible with the building blocks of other manufacturers and can therefore be creatively combined with your existing building blocks and theme worlds. All Hubelino products are manufactured in Germany under the highest quality standards.