My old cocktail shaker has been unceremoniously retired. This insulated shaker just works better on several levels. Drinks stay cool. Hands remain harm, and it doesn’t leak. Even the cap stays in place. I suspect that thrift Shop charities like GoodWill will have a plethora of the leaky bone-chilling models from the 1950’s at bargain prices…. but resist the frugal temptation to buy them -- get one of these instead! Your guests might not notice the shaker shake-up, but you will! Then tell them where you got it. Brilliant practical ideas need to be supported and shared.