Corkscrew Replacement Spiral Worm Easy to Install - Just unscrew the cap above the spiral worm and remove the existing worm. Insert new replacement worm and screw cap back on. Quality- The teflon coated spiral worm glides smoothly into the cork with a clean finish. Cost Effective- Why buy another lever style corkscrew when you can extend the life of your current corkscrew by simply replacing the spiral worm when the previous begins to dull.