The Sensory University Chewy Charms are completely molded from the same safe material that the Chew Stixx Pencil Toppers are made from. This product is completely FDA approved and contains no BP or Phthalates. The Charm comes with either a retractable clip that can hold multiple charms or with a break-away lanyard. These systems keeps the chew device clean and off the floor. It also is more discrete for some children who may want this option. Ages 3 and up. Colors may vary. Use with supervision and inspect the charm regularly for wear and discontinue use with first signs of wear. Order the Chewy Charm as a necklace or in the clip version.N.B. No exchanges or returns on oral motor items due to health regulations.