Merrick brand Flossies® are the all-natural, high protein, low-fat treats that help free your dog's teeth of tartar-causing plaque. The Flossies® unique shape helps clean your little dog's teeth as he chews! The sole ingredient is Beef Tendon. Each Flossie is unique and is about 7 inches long. The spiral is about 1 1/2 inches in diameter. The tendon is about 3/8 inch diameter. As with any chew toy or treat, supervision is recommended.