Using these Icelandic Wolffish Skin dog treats is super easy. Just give one to your dog and watch them enjoy! Since they are quite dense, they can keep your dog occupied for a while. As for the size, the 3 - oz pack is a great option for regular treat - giving. When it comes to storage, keep them in a cool, dry place. This will help maintain their freshness and texture. Also, remember these are special order items, so plan ahead if you want to keep your dog stocked up. If your dog has any specific health conditions or food sensitivities, it's always a good idea to consult your vet before introducing a new treat.