Transparent coloured spheres

Five aligned trnsparent spheres refract and reflect the light from a window.

These are 'hydro beads' - Superabsorbent Polymer (SAP) beads made from polyacrylate, that absorb several hundred times their own weight of water. They swell to form transparent spheres that look like marbles but have a bouncy, gel-like feel. By soaking them in coloured water, the beads can be made to take on a range of different colours.

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