This listing is for a PAIR of quality Impac Inner tubes by Schwalbe These will fit 28"/700c wheeled bikes running tyres from 28 - 32c Standard 40mm long Schrader valve Reinforced dual thickness tube valve interface to prevent punctures Light weight butyl rubber construction Suitable replacement tube to fit the following tyre sizes: 700 x 28c (28-622) 700 x 30c (30-622) 700 x 32c (32-622) 27 x 1-1/4 Fifty (28-630) 27 x 1-1/4" (32-630) No need to wait around for the courier as they conveniently packed for FREE LETTERBOX DELIVERY! PLEASE NOTE: To keep the price low, this tube may be shipped without the original manufacturers box.