NWT Mary Jurek Helyx Cocktail Martini Shaker w/Knot -Handmade in India -Brand new in box -10” H -18/8 stainless steel, Dishwasher safe, FDA food safe, anticorrosive Mixologists agree-a proper martini is best made with this modernist Helyx Cocktail Shaker. It’s in the mixing, and with the signature knot on the cap, you get a better grip to shake things up.