Our whiskey glass are made of hand blown crystal lead-free glass, giving them maximum clarity and brilliance. The thick walls and heavy weighted base are extremely durable. Solid design is virtually unbreakable.Beautiful,unique,sparkling,heavy-weight,premium crystal-clear. Each bourbon glass is moderate enough for adding whiskey ice stones/ice cubes.Dishwasher safe.Perfect glassware to serve whiskey, cognac, scotch, gin, rum or more. This old fashioned glass is a must have for your home bar.