These Replacement Spirals / Worms fit all Metrokane Lever Rabbit corkscrews and all Screwpull Lever Model corkscrews. They are Lever Corkscrew Replacement Spirals /Worms, with Triple layer non-stick coating.
TO REPLACE: Simply unscrew the "cap" of your lever model corkscrew, remove the old spiral, slip the new one in place, and screw the cap back on.
To increase the working life of these spirals, it is recommended that, before using your corkscrew, (1) in the case of Foil on the bottleneck, you remove the foil covering the cork; and, (2) in the case of Wax covering the cork, you remove the wax.