Set of 2 inner tubes 2.80/2.50-4 280/250-4 2.80-4 2.50-4 280-4 250-4 with curved valve stem for Razor Scooter e300, wheelbarrow, hand truck, lawnmower, cart

About this item: 【Wide Application】Suitable for trolleys, forklifts, lawnmowers, wheelbarrows, etc. Replacement inner tube for tires with an outer diameter of 21.6 cm, compatible with a 10.2 cm rim. Perfect Fit: Our replacement inner tubes are perfect for 7.1 cm / 2.5 - 4 inch tires and wheels (21.6 cm outer diameter). Also measured as 9 x 3.50-4, 2.80/2.50-4, 2.50-4, 2.80-4, 3.00-4. Premium Durable Material: Our tubes are made of strong and durable rubber. Curved metal valve stem with air cap. High airtightness, anti-oxidation. Durable, not easy to break or puncture. 【Safe and Explosion-Proof】 If the inner tube is punctured, an airtight seal is immediately created to prevent damage, destruction, and user injury. Safe for use in all weather conditions and seasons. 【Enhanced Driving Comfort】 The thick rubber absorbs shocks (4 times thicker than others), perfectly suited to poor road conditions and rough roads, making the vehicle more stable during use, thus reducing collisions and friction and ensuring vehicle safety.