My dogs love the Greenies Dental Dog Treats (Teenie Size). I have 2 chihuahua mixes, 10 and 14 pounds each. These treats are the perfect size for them. They measure about 3 inches by 1/2 inch by 1/4 inch and are easy for my small breed dogs to pick up and chew for a few minutes until they are done. The Teenie Greenies are a chewy, soft texture so it is easy for them to bite into. My dogs get so excited when I walk to their treat jar, especially when I ask "do you want a toothbrush". These are a bit expensive compared to other treats but one of my dogs suffers from tartar and plaque so these are great to help clean her teeth. They come in a resealable ziploc-style bag which is great for owners who don't have a dedicated treat jar!