What you receive: [ 1 Easy To Use Bag - Contains 8 Pounds of Natural Flaked Oyster Shells ] Bring a natural, delicious, and proven to work calcium supplement to your precious birds! These flaked oyster shells are perfect for supplementing feed for chickens, ducks, and other birds to help! - Raise happy and healthy birds and help supplement the calcium they lose from creating eggs. - These natural shells are HANDPICKED from nature, cleaned, sun-dried, and flaked by us in the USA and go straight into your bird's lovely beaks!