40th Birthday Gift Celebrating 40 Years 12 Pack Can Coolies Drink Coolers Black The best birthday gift is a funny birthday gift. Celebrate with a funny 40th birthday gift! Holds 12 oz cans or 12-16 oz bottles. Folds flat for easy storage. Machine washable. Premium 1/8" thick high density open cell polyurethane foam keeps beverages cool. You have chosen a 12 pack - perfect for gifting and sharing with friends. Coolies make a great gift or party favor. The 12 pack is your best value.