Use this set of RSVP Endurance Drink Straws and Cleaning Brushes to help reduce plastic waste while enjoying the convenience of straws. This set includes four drink straws and four frozen drink straws, all made from 18/8 stainless steel. The frozen drink straws feature a larger diameter that's perfect for thicker drinks like milkshakes and smoothies. Clean your straws thoroughly with the two cleaning brushes. Made from flexible stainless steel wire with stiff bristles to remove debris from the inside of your straws. All items are dishwasher safe.