An awesome scientific novelty item, to keep kids amused and their hand's busy! This extremely stretchy Lab Putty changes colour when in contact with light and body heat.

Colour changing, body-heat sensitive putty will bring stress relief for kids ages 4 and up.

You can choose from three colour-way options... The slight increase of heat temperature will fade orange into yellow, blue into purple and violet into pink. All you need to do is place the putty under a light for few minutes to charge the glowing particles, then rub it in our hand, squeeze and stretch and you will see it change colour.

Product Benefits:

• This putty dough encourages the development of fine motor skills, hand-eye coordination, dexterity and strength of hands and fingers.
• Awesome fidget toy at home, in the classroom aor office, and a great stress-relief tool.
• 100% non-toxic and never dries out (so long as stored correctly in the tin). Suitable for all skin types.