Thicker gauge metal would make for sturdier building and provides a heaviness towards the cocktail shaker. Though quite a few Boston shakers are made of tin for more secure shakes, the glass rim on this Kotai shaker is tempered—the rim is heated up and cooled down for tough glass that https://franciscopcifz.kylieblog.com/38196420/rumored-buzz-on-shaker-cabinets