Premium Material 1 Golf whiskey tasting Glass, is made of 100% safe lead-free borosilicate glass. It is handcrafted by our master artisans. The glass is handblown in the shape of a golf ball inside. The dimples and angles of the glass will bring out the unique presentation of your drink. (Golf ball in not included) Double-walled InsulatedThe glass can accommodate up to 6oz of whiskey, bourbon, scotch, rum, brandy, tequila, and cocktails. The double-walled insulated design helps keep your drink at the ideal sipping temperature without the need for ice watering down your drink, keeping your drink flavor as pure as possible. Golf Ball Inside DesignThe glass is shaped to allow your whiskey, scotch, and bourbon to hit your palate at the optimal spot, and narrowed at the top to push the subtle aromas straight to your nose. Making Unique GiftThe golf ball whiskey glass set is one of the novelty golf gifts for any occasion. It is a birthday, anniversary, bachelor, groomsmen, bosses day, fathers day, Christmas, and retirement present for who you care.