【Full Model Compatibility & Wide Size Fit, Easy Installation】 Perfectly compatible with tire models: 3.00/3.25-8, 3.25/3.50-8, 3.50-8, 3.25-8, 3.00-8, 350-8, 325-8, 300-8. Fits wheels with 13-14.5" outer diameter, 3.00-3.50" width, 8" rim diameter. With 14.25" inflated diameter and 3.34" width,replacing tires for wheelbarrows, lawn mowers, small ATVs, garden trailers. Tire & inner tube only (no hub), fits perfectly without extra modification. 【Natural Rubber Inner Tubes & Thickened Tires, Excellent Durability】 Inner tubes are made of high quality rubber,No slow leakage after 72-hour inflation test, no frequent inflation needed for daily use. Outer tires adopt thickened rubber technology with built-in dense cord layers, featuring excellent wear and puncture resistance to resist gravel and sharp debris. Overall load capacity up to 300LBS (≈136KG), suitable for light to medium-duty work in home gardens and small farms, with longer service life. This is a Non-Highway Service (NHS) tire, designed for low-speed work scenarios. 【Natural Rubber Tube & TR13 Valve, Stable Air-Tightness】 Inner tube made of high-quality rubber, flexible & crack-resistant, with TR13 standard straight valve stem (fits all universal inflators); reinforced valve root + sealed valve cap, no slow leakage after 72-hour test, solving "frequent inflation" issue; recommended manual pump, max 30 PSI, marked as NHS (Non-Highway Service) for safety. 【2-Set Package & Practical Tools, Cost-Saving】 Each package includes 2 outer tires + 2 inner tubes , plus 1 valve wrench + 3 spare valve cores + 2 sealed caps - one-stop tools, no extra purchase; replace old tires to restore equipment use (no need to replace the whole machine), more cost-effective than 1-set packages, easy to install for beginners. 【CUSTOMER SERVICE】: High-quality 3.50-8 tire and inner tube set save you time and money. Please check the model and size of your old tires before buying. If you have any questions, please contact us and we will respond to your questions within 24 hours Note: This inner tube is NHS (Not for highway use)