Crayola Glow Sand Mini Sand Sculptures Kit Crayola Glow Sand lets you create awesome sand art that glows! Just activate each color of Glow Sand and pour into the Glow Sculpture forms. Awesome layered designs will glow for 4 hours! Great for parties, sleepovers and nightime fun! Caution: This product is not suitable for children under 36 months due to small arts which may cause a choking hazard if swallowed.