No more messy adhesives, scraping & cleaning windows or removing crumbled guides from inside door panels. Each 8'"wide x 13" tall holder consists of two suction cups, two clips to securely fasten the two suction cups to the 4 mil. clear plastic bag and one wire stiffener that rests at the bottom of the bag to prevent curling in the sun. Easy to install, insert pouch inside window glass. Two suction cups hold pouch in place. Great for demo rides - easy to remove. Reusable. Sold in packs of 50.