Hand-selected by a career bartender: 550ml / 18oz size makes one or two cocktails while fitting comfortably in one hand. Compatible with all industry-standard Julep and Hawthorne Cocktail strainers. No more broken glass! Seamless construction means there are no weak seams to break during your shift. Hand-blown glass is durable and designed for beauty and strength. Dishwasher safe for home and commercial dishwashers.