
Solid Rubber Polyurethane Foaming Flat Free PU Foam Trolley Wheelbarrow Wheels. Flat-Free Design: Made of micro-cellular polyurethane, ensuring no air leaks or flat tire downtime. Durable Working Life: Lasts 5-8 years, which is 4 to 10 times longer than standard pneumatic tires. Chemical Resistance: Resistant to water, oil, dirt, acid, alkali, ozone, and UV rays. Lightweight Construction: Micro-cellular polyurethane makes the tire flat-free without adding significant weight. OEM Service Available: Professional designers available to help with brand promotion and custom designs. Wide Application Range: Suitable for construction, industrial, lawn & garden, roofing, and material handling. Variety of Sizes: Available in sizes from 5-inch to 18-inch with various patterns and valve types. Competitive Pricing: Good quality at competitive prices with timely delivery options.