This set of two rear bike baskets are perfect for transporting groceries, trips to the library or riding back and forth to school with book bags. Each bag measures 14"L x 8.5"W x 10.5"H. They attach to the top of the rack with metal hooks and to the bottom of the rack with an elastic cord and s shaped hooks. A rear rack is required to mount the baskets. The baskets fold flat for easy storage when not in use. By Rebrilliant.