Layer color after color of Sandtastik’s classic sparkling sand using this small assortment of clear sand layering bottles. Craft colorful art made easy and fun, even for little hands. Set includes 8 PET plastic bottles in various shapes and sizes ranging from 3 to 6 oz. • Refillable • Durable, sturdy • PET plastic, a safe alternative to glass jars • Clear, transparent – no yellowing • Secure twist-on/off lid Sand layering is an easy and fun activity, even for children with small hands. Now art can start at a very young age. Just imagine their enjoyment.