SmoothFoam is a smooth, closed cell foam that is molded into shape from tiny beads. Because of the smooth surface, it works well for sculpture and craft projects. High-density surface is easy to paint. Plus, its porous cell structure is great for holding embellishments such as dowel rods, chenille stems, pins and more. Ideal for classroom projects and seasonal decor. Use glue specifically made for foam. White color. 6 balls per package, each measures 2.9". Caution: Flammable. Do not expose to open flame.