Wheat Straw Polypropylene Ball | Composed of Reclaimed Stalks From Wheat | Less Plastic Used In The Material | Harvested Wheat Is Renewable And Sustainable | No Indication Of Extractable Gluten In Testing | Vanilla Flavor | Safety Sealed | Petroleum Free | Meets FDA Requirements. Approximate Size: 1 1/2″ Diameter, Imprint Area: 5/8″ Diameter