Duran&';s DFP Tuna Spikes are CNC machined out of 316 Marine Grade Stainless Steel with an Anodized 6061 Aluminum Handle. The spike is threaded and epoxied to the handle ensuring that the spike will never twist or fall apart over time. This tool is designed to spike quickly and directly into the brain of a fish, causing immediate brain death. A fish brain is usually located slightly behind and above the eye. When spiked correctly, the fish fins flare and the fish relaxes, immediately ceasing all motion. The blood contained in the fish flesh retracts to the gut cavity, which produces a better colored and flavored fillet. Warnings and Disclaimer You must be 18 years of age or older to purchase this Product; This Product contains sharp objects that may cause injury; This Product MUST be used with CAUTION; This Product MUST be kept OUT OF REACH FROM CHILDREN; This Product may cause injury if not used with caution; if misused; or otherwise not used for its intended purpose. Purchaser holds harmless seller for any harm, injury or responsibility for harm or injury, resulting from use of the Product. Purchaser holds harmless seller for any result of failure to use in accordance with law.