This is a 155/175R15 tube with a TR13 Offset rubber stem. Recommended tire fitment is for a 155/175R15 Radial tire. Fits 155-175 width, 15 inch diameter tires. This inner tire tube has a TR13 rubber stem and the valve stem location is Offset. TR13 stem is rubber stem 1 1/2 inches tall, 3/8 inch in diameter. Actual item may differ from photo. Hartford brand tubes are built to meet our specifications using premium grade materials. They are designed specifically for their applications, to provide a high quality inner tube solution and reliable service life. These are excellent quality tubes, available in a wide range of sizes for collector and specialty vehicle applications.