he Standard of Purity™ Dog Treats Baking Soda Enhanced Formula Ridges Help Scrub Away Plaque & Tartar While Chewing Vitamin Enriched + Fresh Breath! Easily Digestible Reward your dog with a treat that keeps on giving! Arm & Hammer™ ringers™, made with a baking soda enhanced formula, not only taste great, but promote good dental health by freshening breath, whitening teeth & helping to reduce tartar!