Ages 4+. Total Net wt. of sand: 7.1 oz (200 g). Includes: 3 plastic bottles; 3 cork stoppers; 8 colored sand packets; sand scoop; funnel; design tool. Capture a rainbow in a bottle! Express Yourself: Add your unique personal to make original crafts inspired you and your imagination! Play with Patterns: Tilt bottle in different directions as you pour in sand to create different-shaped layers. Plant your design ahead of time. Used colored pencils, markers, or crayons to draw design ideas. Mix together a small amount of two or more colors before pouring a layer (don't mix too much or you will lose the sharp definition between layers). Experiment with the design tool to create patterns within the sand layers. Melissa & Doug products meet or exceed US testing standards and pass our high quality requirements. Conforms to ASTM D4236. We love feedback! Call us: 1-800-284-3948. MelissaAndDoug.com. Made in China.