AMACO-A tool for making 7/16" round, 5/16" x 5/8" oval, and 1/2" bicone beads with clay. Create your own beads for bracelets, ankle bracelets, necklaces, rings, and more! Roll consistent, uniform beads in 3 popular shapes-oval, round, and bicone. The Tri-Bead Roller is suitable for use with many kinds of clay, including air-dry, polymer, and precious metal clay. Easy- to-follow instructions are enclosed.