The product is a set of 50 Mylite 2 Mil Mylar comic bags and full back boards, designed for modern and current comic books. These sleeves are made of durable plastic material and offer UV protection, crystal clear visibility, and are acid-free. The bags are white in color and have a compatibility thickness of 7 inches, suitable for standard-sized comic books. Manufactured in 2023 by the brand E. Gerber in the United States, these comic book sleeves are a reliable and high-quality option for comic book collectors.