Fascinating sensory toy that would make excellent entertainment for kids of all ages above 3 years. Designed to be able to hold together like a sand castle without the water. Stimulate their imaginations and get them to using their hands, good for co-ordination enhancement. Bucket contains 700g and comes in choice of 6 assorted colours, Purple, Blue, Pink, Yellow, Green, Brown or buy 1 of each colour. Discover the science of kinetic energy.