These glass drinking straws are made of borosilicate glass and fully annealed for durability. They are reusable, sustainable and replace plastics leaching toxins into beverages. Perfect for hot and cold drinks, they add a touch of elegance to everyday dining/drinking experiences. They are easy to clean and are backed by a lifetime guarantee against breakage! many styles and sizes available with ongoing promo packages being offered. Don't miss out! Add beauty to your life with "a touch of glass"