LotFancy inner tubes are made of isobutylene isoprene rubber, better than natural rubber in air tightness, elastic damping and aging resistance.

4.10/3.50-4 inner tube, excellent replacement for hand trucks and other applications that use same inner tube size.

Perfect for most 10" 4.10/3.50-4 Wheel Applications.

Inner Tube is under ISO 9001 certification.

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