Ideal Tattoo Ink Black is a veterinary-use ink formulated for animal permanent identification. The 3 fl oz (approx. 85 g) bottle delivers black ink suitable for livestock and small animal ID work. Commonly used in on-farm and clinic programs for cattle, swine, sheep, goats, and rabbits. A practical choice for livestock identification where durable, visible tattooing is required under veterinary guidance. For veterinary use only.