KOSMOS 617165 Fun Science Glow in the Dark Bouncy Ball, Make 20 Colourful Power Balls, Experiment Set for Beginners: Experiment Box, Multilingual Instructions (English language not guaranteed)

Mix extra cool bouncy balls yourself - in just 10 minutes your own creations are ready. Which one jumps the highest? With the special granules in 6 colours and the additional 3 glow-in-the-dark colours, you can make up to 20 power balls. If the first balls lose their bouncing power after a few days, there is definitely a replenishment With two different moulds for round and square jumping balls as well as the fun wiggly eyes, variety comes into play. There are also glow-in-the-dark colours in nature - children from 8 - 12 years experience this in exciting information texts and fun facts. A KOSMOS experiment set to get started right away, have fun and collect knowledge!, Manufacturer: KOSMOS