A spay kit is a comprehensive surgical instrument set containing all the essential tools required for performing ovariohysterectomy procedures in canine and feline patients. The kit typically includes spay hooks, Carmalt and mosquito hemostats, tissue forceps, Metzenbaum scissors, Olsen-Hegar needle holders, and towel clamps, all organized in a sterilizable instrument tray or case. These German stainless steel instruments are autoclavable and designed for reliable, repeated clinical use.