The purer the water, the larger the Orbeez™ will grow. This is because the ionic / mineral content of the water affects the size. Make sure you are using clean, distilled water, when growing your Orbeez™ as they can grow to a maximum diameter of 14mm.
How big can Orbeez balls get?
They come in a pack of 100 pieces. The size of each orbee is around 0.5 inch or 1.3 cm. Soaked in cold water you can grow them between 4-7 days and they can reach a total size of up to 20 inch or 50cm.
Can Orbeez grow forever?
If you have grown many Orbeez for a particular game or decoration and you do not need them anymore, you may be wondering if it is possible to shrink them. The answer is yes. Orbeez are reusable, which means that they can shrink and then grow in water again for more fun activities.