Keep cool drinks cool! The Wine Enthusiast Steady Temp Martini Glasses feature a unique mouth-blown double-wall design that provides extra insulation so your martini stays at its proper serving temperature regardless of how long you’ve held the glass. It also creates a "suspended" visual effect for a compelling presentation. Stable durable double wall martini glass made of lead-free glass. Dishwasher safe. Set of 4 Size: 3-3/4"H 8 oz.