Catshark, also known as dogfish or sand shark, is a dried fish that dogs can eat as a snack. It is a hard snack, which is good for the dog's teeth and gums, and it can help remove plaque and tartar. The catshark is also a hypoallergenic protein source and can be a good option for dogs with a food allergy. Weight: 80-150g - Dimensions: 50-60cm Ingredients: 100% Catshark. Analysis: Protein: 76%, Fat: 3.0%, Moisture: 7.0%, Ash: 12%, Fiber: 0.60%, Omega3&6: 0.23%.