1.Size:350-4,350-5 400-6 250-4 350-6 400-8etc. 2.good gas tightness 3.4.00-8 wheelbarrow wheel 4,OEM accepted 1. Variety: Pneumatic Wheel,Solid Wheel,Foam Wheel,Tubeless Wheel,Castor Wheel, Wheelbarrow Tyre&tube and etc.2. Pneuamatic Wheel=Tyre + Tube + Rim assembled2.1. Main Size:6"x1.5,8"x2.50-4,10"x3.00-4,10"x3.50-4,12"x3.50-6,13"x3.25/3.50-8,14"x4.00-8 etc2.2. Tyre Layer: 2ply,4ply,6plyTyre ...