Bushwhacker Omaha - Bicycle Grocery Pannier Cycling Rack Basket Bike Rear Bag Rear Accessories - Sold as Pair Two grocery panniers attach to the top of the rack with two metal hooks and the bottom of the rack or bike frame with a bungee and S Hook. Each pannier will accommodate one full sized grocery bag. When not in use folds flat for storage. Dimensions: 14" Length x 9" width x 11.5" height