Great for maintaining oral health. Great for training treats. In a resealable container. Trixie Trainer Snack Mini Hearts are delicious dog treats. These treats are extra small and soft, making them ideal rewards during training or other courses. The snacks do not contain sugar and come in three different flavours: chicken, lamb and salmon. The dog treats come in a handy, resealable bucket, allowing you to easily store them or take them along.