Regular Parrot Pockets® are more flexible and easier for your bird or other animal to manipulate the holes to acquire their individual pellets. They are made of 5-6 oz leather in addition to our Stuffed Pockets and Tasseled Pockets. Fill Parrot Pockets® with your birds dry pelleted diet or any other dry good idea for longer occupational time while you work! The diameter of the holes are made for diets like Harrisons Bird Food Macaw pellets or ZuPreem parakeet sized pellets. This pocket size is intended for extra-small parrot species such as budgies or cockatiels at 3" wide by 5" tall.