Hape Double-Sided Spiral Twist Knikkerbaan. 9dlg.

Let the Quadrilla set rotate twice with this great double-sided spiralwister. Both the hollow and convex side has spiral -shaped traces that double the playing pleasure. Play tips When the hollow side of the spiral turner points up, marbles roll from the arm in the outer ring and then quickly down to the middle. With the convex side up, the rolling speed of the marbles is reversed. A marble that is placed in the middle quickly rolls from the center to the outer ring and the arm. Characterize • Double -sided spiralwister • Both sides of the twister can be used, so that the fun is doubled • Marbles rolls inside on the hollow side and outside on the convex side • Set consists of one double -sided spiralwister, three wooden distribution blocks, one hole valve, one accelerator, two stabilizations and two height-resisters, eight marbles • Design developed in Germany inspired by the Da Vinci circles • helps to develop spatial thinking and the basic principles of science, technology, technology and mathematics) (STEM (Science, Technology , Engineering, mathematics) • Praed by The Wall Street Journal as the perfect toys to teach children how to cod • to be used with all Hape Quadrilla sets • For ages of 4-99 years