Made in Holland by Royal Leerdam, a company with a reputation, back to the 1860's, of producing clear quality glassware for home and commercial market. You know the drill, Crushed Ice, Lime, Contreau and Tequila! Oh and don’t forget the salt… Or just cheat and go for a premix version. Any way this glass is perfect and also looks good filled to the top with chocolate Mousee and then lashings of whipped marscapone and grated chocolate!