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 (700x23-28c) to 116g (29x2.4-3.0")