2-Pack TYK Industries 23×8.50-12, 23×9.50-12 Inner Tube for Lawn Mower Tractor
23×8.50-12, 23×9.50-12 WITH STANDARD TR13 VALVE STEM. They are multi-fit tubes that are made to be used in the following sizes: 23×8.50-12, 23×9.50-12 and 23×10.50-12. These tubes have standard TR13 short rubber valve stems.