IRC Standard Tube - 3.50/4.00-18 - TR-4 Stem T20063</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>High quality Japanese tubes meet or exceed OEM quality standards</li><li>Heavy Duty tubes are 3mm thick and puncture resistant</li><li>Made of a blend of natural and butyl rubber</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/51VL%2BgPq5KL.jpg'></br>