This is a professional veterinary surgical kit used for teat surgery on livestock. The kit contains a variety of stainless steel instruments for procedures such as tumor extraction, slitting, dilation, and milk drainage. The specific brand name visible on the pouch is HNANAVET. 

This type of kit is designed for use on large animals, such as cattle, to treat conditions affecting the teat and udder. Each instrument serves a specific purpose, for example, teat slitters are used to enlarge the teat opening, and teat tumor extractors are used to remove growths from the teat canal. The tools are made from stainless steel to be durable and resistant to rust and corrosion after repeated sterilization.