The Coutale Sommelier corkscrews are designed by Philippe Bern?�?�de, French winemaker, vintner and owner of Clos La Coutale. Over the years he became increasingly frustrated by the poor quality of the corkscrews that crossed his path. After a day of struggling to open his wine at a tasting he set out to create his own! Et voila! The first Coutale corkscrew was born! Coutale Sommelier is now a complete line of corkscrews. The French patented spring-loaded double lever adds ease, control and power to your uncorking experience. Coutale Sommelier is the ONLY spring-loaded double lever corkscrew. OUR GUARANTEE - All Coutale Sommelier corkscrews are backed by a lifetime guarantee. We stand by our product as the ONLY French Patented spring-loaded double lever and the most aesthetic and utilitarian double-lever waiter's corkscrew on the market. All Coutale Sommelier corkscrews are backed by a lifetime satisfaction guarantee. Message us through Amazon with any questions you may have and we promise to always answer within 24 hours.