Package Include: One set contains 1 pcs Styrofoam balls of 20 cm ( 8 inch) diameter Medium size These white foam balls are made of polystyrene, solid, soft, lightweight and smooth, not easy to break and scatter. Smooth surface, you can apply paint on it, string them up, stick some sequins or cut them into any shape you may like to serve your need, lightweight and easy to handle. Crafts foam ball great for making holiday art, Christmas, Easter ornaments, floral flowers arranging and school modeling, sculptures and science projects Quality Product