Stircicles are perfect to keep all kinds of drinks cold! This set includes 4 swizzle sticks made of food-grade stainless steel with double side walls and filled with a liquid freezer gel. Smooth edges won't mar glasses. Place in freezer for approximately 4 hours before use - or store them in there so they're ready when you are. After use, rinse dry. Reusable. Set of 4.