QUICK FILL & TIE: Unleash fun with speed & ease this summer with Bunch O Balloons; fill & tie 100 water balloons in 60 Seconds.
self-sealing,
2 Pcs 20″ Self Sealing Bike Tubes 20×1.75/2.125 AV Valve Super Automatic Repair, Self-Sealing, Puncture Resistant Compatible with 20×1.75-2.125 Inch Bike Tire Tubes
MORE DURABLE Designed specifically to stop tube punctures from ruining your ride and keep you going