The venomous toxins are produced in the venom duct, which is attached to a large bulb called the venom bulb. The venom bulb contracts to push venom into the harpoons, similar to squeezing a pipette to force liquid out. The longest dissected venom duct is over three feet long and came from a cone snail that was only five inches long! The harpoons are evolutionarily modified teeth that are stored in a radular sac. The harpoon is like a disposable, hypodermic needle. Once the cone snail uses a harpoon to inject venom into its prey, it is discarded. The snail must reload another harpoon before it can strike again. Thankfully for snail, they have around twenty harpoons at various developmental stages in storage so a snail will always have another harpoon ready to load and use. The venom is made of a small number of amino acids. Cone snails have the ability to make hundreds of toxins and deliver a cocktail, or mixture of toxins, when injecting its prey with venom.