Get the most out of a tube of West System Six10epoxy. Static mixers are a key component to West System Six10 epoxy. They are what make using this thickened epoxy significantly easier than other systems. These two packs allow users to reuse a single tube for several projects. Because the resin and hardener are separated, a new mixer can be installed at the start of each project. Use just what you need and rest of a Six10 tube for later with a two pack of static mixers. Key Features Identical to the static mixers included with Six10 cartridges Allows users of Six10 to complete several smaller projects using the same tube