As the name suggests

If they have not been previously vaccinated

The variety is aimed at the typical pre-pack market but for outdoor production

the nutritional requirements of these birds are fully covered by our specially balanced formula

K9 Beef Lion Bones Size:K9 Beef Lion Bone: Bulk Pack As the name suggestsDescription Hand trimmed 100% natural high density beef bones that are air dried for a long lasting dog challenge. K9 Half Lion Bones comes in two conveniently sized packs: K9 Beef Lion Bone: Single Pack K9 Beef Lion Bone: Bulk Pack (10 packs) K9 Beef Half Lion Bone: Single Pack K9 Beef Half Lion Bone: Bulk Pack (10 packs)