The kids loved this – 5 tins of clear putty and then you add base colour (red, yellow and blue) and a special effect (glow, shimmer and sparkle). It was really easy to do – but all the putty had been mixed together in 5 minutes so it's not an activity that lasts for long. The putty is fun to play with – really bouncy! But wait until it's on special, definitely not $40 worth of entertainment!