Extremely light thermoplastic polyurethane (TPU) tube, with maximum puncture protection and designed for minimum rolling resistance Just as resistant to snake bites as it is to sidewall damage thanks to the extremely robust material Has removable valve core suitable for extensions Puncture sealing liquid does not achieve any sealing effect with TPU, usage not recommended Individually boxed for store display with easy identification size/valve graphics Weight: 41g (700x2328c) to 116g (29x2.4-3.0")