The Bell 2-Pack 700C Bicycle Inner Tube is a high-quality set of rubber tubes designed to fit 35-43c and 27"x 1 1/8 - 1 3/8" wheels with PrestaValve. The Bell brand is known for producing reliable and durable cycling components, making these tubes a great choice for cyclists looking for a long-lasting and efficient inner tube for their bike. Made from quality rubber, these tubes will provide a secure fit and smooth operation for your bicycle wheels, ensuring a comfortable and smooth ride.