The listing, NIB! Bell Standard 14" Schrader Valve Tube has ended.
Still factory sealed, new 14" standard schrader valve tube. Seals punctures as soon as they happen so the tire doesn't deflate while you're riding. I buy these for my kid's bikes because where we live their tires were getting punctured at least once a week or so and it became extremely expensive to buy replacement tubes. These work really well to prolong the life of their tires. I'm offering this one because I purchased the wrong size once my son started riding a bike with a larger wheel.