WIDE APPLICATION: Tube size: 12" 1/2 x 2 1/4" (12.5 x 2.25). The tube is compatible for strollers, scooters, bicycles, children's bikes and also for other scooters with 12 inch tires. Please confirm that the size of the product meets your needs
MATERIAL: The tube is made of high quality butyl rubber, double the thickness of the original , thick butyl rubber, which has better air tightness, elastic cushioning, resistance to heat and aging resistance compared to natural rubber.
SAFETY: The inner tube can absorb the impact of rough road surfaces and make riding more comfortable and safe, can adapt to various bumpy roads. The inner tube is very wear-resistant and can be used safely in any season and weather condition.
EASY TO USE: For easy installation, we have included two pry bars. You can use any air pump at home to inflate the bike. (Recommended boost pressure: PSI 36 .)
EXCELLENT SERVICE：If you have any questions, you can contact us at any time. We will give you a satisfy reply