Penn Plax E2 Natural Cuttlebones Available Flavored: This Penn Plax Package Of E-Cuttlebone Is Naturally Flavored, But It Is Available Flavored And As A 6-Pack (Sold Separately). Enriched With Vitamins And Minerals: Enriched With Omega 3 Fatty Acids, Honey, And Vitamin B  All Necessary Nutrients That Support Healthy Bones And Plumage, As Well As Avian Energy Needs And Egg Production. Less Brittle Than Regular Cuttlebones: Because Penn Plax E-Cuttlebones Are Only Made With 40% Cuttlebone To Help Prevent Cuttlefish Populations From Becoming Decimated, They Are Enriched With Ingredients That Help To Make It Less Brittle. Clip For Cage Hanging Included: Easy To Hang, These E-Cuttlebones Are Extremely High In Value Of Both Composition And Quality, Offering You A Consistent Size And Value, Always. Shop Penn Plax For All Your PetS Needs: Penn Plax Is A Manufacturer And Distributer Of Top Pet Supplies, Who Specialize In Creating Excellent Pet Products For Animals Both Great And Small. At Affordable Prices, The Penn Plax Brand Is Synonymous With Innovation And Quality, Keeping Your Pet Foremost In Mind.