Material: high natural rubber increment,strong nylon core used inside it. Usage: construction usage or garden use Size: 4.00-8 3.50-8, 4.00-6,5.00-6, 4.00-10,3.50-10. 3.50-4, 3.00-4, 2.50-4, 200x50pattern: any pattern availabe. Wheelbarrow tire and tube 4.00-8