Large animal instruments and equine instruments at Surgical Holdings Veterinary British Manufacturer of Prestige Veterinary Instruments. Because of the size of large animals, such as horses, sheep, goats and cattle, and the variation of their anatomy, large animal instruments, such as equine instruments, require a highly specialised range of products. All of our stainless steel large animal instruments are manufactured in accordance with BS 5194. This ensures every large animal and equine instrument has the correct composition, to ensure they can be fit for purpose and perform the action they were designed for. Our full range of Large Animal and Equine Instruments for veterinarians includes Obstetric Chains & Handles, Obstetrical Instruments and Spaying Instruments and Catheters.