The Benno City Pannier Bag is a single, high-capacity bag that is perfect for carrying a variety of different items on your bike. This pannier has a 20-liter capacity, which is enough to hold a wide range of items, including grocery bags, backpacks, purses, and other items. The pannier is made of durable materials and it is finished in a sleek black color. It features an adjustable strap system that allows you to secure your load in place, no matter how big or small it is. The cover of the pannier can be closed or left open to allow extra room for the load to extend out, depending on your needs. The dimensions of the pannier are 10-15cm x 46 x 42cm (W x L x H), and it is sold individually. The Benno City Pannier Bag is a versatile and convenient accessory that is perfect for anyone who needs to carry a lot of stuff on their bike.