Description: 【Material】: These craft foam balls are made of foam material, not easy to break, are very lightweight, and allow you to use them for a long time 【Exploring the solar system】This Arts Decoration Balls are designed for making Solar System Model Kit, suitable for kids to learn and experiment with science 【Educational】:Solar System Project Kit can develop imagination, hand eye coordination 【DIY Projects】: Great for crafting projects or various decorations in different situations, such as Birtdhay, Wedding, Party, arts, household and other DIY projects. 【Gift】 Solar System Foam Balls are Ideal gift for children with astronaut dreams, allows children to understand the location of the eight planets in the solar system Specification: Material: Foam   Size Chart: round ball:12cm/4.72inch 8cm/3.15inch 6cm/2.36inch 4cm/1.57inch 3cm/1.18inch half ball:8cm/3.15inch sun:6.5cmx8.5cm/2.56inchx3.35inch plate:11cmx2.5cmx1.5cm/4.33inchx0.98inchx0.59inch Package Includes: 1 set Foam Ball Note: Please allow slightly errors due to manual measurement and different monitors.