【Wide Compatibility】This 12.5"x1.75/2.125 inner tube fits most baby strollers and kid bikes tires with a 12" or 12.5" outside diameter and a tire width of 1.75" to 2.125" 【Replacement Inner Tube】Compatible with BOB Gear Revolution SE/Flex/Pro/Ironman/Stroller Strides, and other stroller brands, like Baby Trend, Bumbleride, Schwinn, Joovy, Mountain Buggy, Baby Jogger, Burley, Thule and more 【Shock Absorption】The stroller inner tube has good shock absorbing performance, which can absorb shock and reduce bumps when riding on complicated road surface, protecting you and your baby's safety 【Always Safety First】Safety has always been our priority. Our stroller inner tubes are made of high quality butyl rubber, which has better air tightness, tear resistance. Protect yourself and your baby from the brunt of rough terrain and explosive puncture. Make sure your leisurely parent-child time isn't interrupted by mess 【Thickened Rubber Material】This stroller inner tube replacement is made of thickened butyl rubber material, which has good air tightness, is not easy to explode and has a longer service life 12"x1.75/2.15 Inner Tube for Stroller