3 mesh bags and 1 plastic bag in total to hold water bottles, ipad, magazines, kid's toys, etc. Multiple pockets give you extra storage space and make your car look neat. Easy to install and remove. Adjustable top and bottom straps remain the back organizers in place. Size in 19" x 27.5"(W x H) approximately. It can cover your backseat fully and easily. One size fits most vehicles. Specification: one set includes 2-pack car seat back organizer. Easy care: Hand wash suggested. Clean the dirty with a wet cloth to clean it up. Please allow 2-4 weeks for shipping.