These are squares of dried cod skin and nothing else. Antos makes them as a single-ingredient treat with no additives, which is why it suggests them for dogs with sensitivities.

Fish skin dries light and crisp, so a bag of squares goes a long way, and the flat shape is easy to break smaller for a little dog.

• 100g bag
• Composition: 100% fish skin (cod, per Antos's description)
• Crude protein 60.0%, crude fat 0.8%, crude fibre 0.5%, crude ash 2.5%, moisture 16.0%
• Antos lists it as gluten-free, grain-free and sugar-free
• Listed for small to giant dogs, puppy to senior

Two things worth knowing. Antos doesn't publish a piece size or count per bag, or a daily amount beyond "treat responsibly" for your dog's size. It lists small dogs upward, not extra-small breeds, so break pieces down for a toy dog.

Who it's for: dogs with sensitive tummies or allergies who need a one-ingredient reward, and any dog that goes mad for fish.