3 years & up. Your children will be amazed as they shake and watch this Sensory Glitter and Sparkle Storm Set. Turn them over to observe the sensory glitter storm. This set provides a great calming activity for children as they watch the swirls of glitter move up and down the large glass cylinders. This activity promotes mindfulness, color recognition, and curiosity. Encourage children to identify the colors they see in the cylinders. This includes three cylinders containing gold, silver, and blue glitter in clear liquid. Measures 5.5"L x 2"W each.