Michelin's Airstop name says it all. Their Airstop tubes use a proprietary butyl rubber that holds pressure longer so you won't have to top off your tires so much. These fine tubes are reinforced at the valve, too.
| Barcode | Manufacturer's Part Number | Vendor Number |
|---|---|---|
| 03528701021850 | 57901 | QBP-TU8146 |