Wide Application: Polystyrene ball s are perfect for crafting projects or various decoration in different situations, such as party, Easter Day, arts, household and school projects. DIY Art Craft: These white polystyrene foam balls can be painted, glued, cut, sanded and pinned to make whatever you'd like! Decorations: Styrofoam balls can be used for weddings, vase decorations, and small size balls can be used as diy for your friends during festivals. Materials: These white foam balls are made of polystyrene , not easy to break and scatter, very lightweight, allow you to use for a long time. Package Included: 80 pieces for 4 size white craft foam , meet your different decoration and craft needs.