It is an experience rather than just a product. The person completing the picture uses their imagination to create the picture in the colours they wish.
For children it helps to build their skills and it is a lovely activity to keep the children busy and for you to spend the time together while they enjoy creating their masterpiece. Most of all it is great fun!!
Official Link: https://www.eddiecatz.com/event/summer-workshop-sand-art-workshop-3/2018-07-18/