3 years & up. Each sand has a unique quality that children will find fascinating. the river bed and garnet sands have clean grains with a crunchy texture, while objects sink in quick sand when water is added. The knot sand has a rough texture but is extremely lightweight.
Jurassic Sands are:
Jurassic Knot Sand - A lightweight alternative to sand made from USA-grown corncobs. It's a great sensory material for children with its rough texture, larger grain size, and all-natural golden grain color.