National Autistic Society Approved Gelli Play turns water into up to 10 Litres of thick colourful goo! Sprinkle the Gelli Play powder into a bowl of water and watch it magically transform into colourful goo! When you’re finished playing, simply add more water and dispose of down the toilet. Gelli Play is the perfect product for messy and multi-sensory play! Gelli Play Mixed Colours - 50g Contains: 1 x 50g Colour Powder 1 x Instruction Leaflet Available in Red & Green Skin Safe - Drain Safe - Easy Clean - Stain Free- UK Made Our powder is certified biodegradable and accredited by the British Skin Foundation!