10"×3.00-4 Hand Cart PU Foam Wheel Benefits 1. Puncture free, microcellular polyurethane replaces the air in flat pneumatic tires. 2. Lightweight, it is easier to handle your equipment. 3. With easy rolling you can do the same job with less effort. 4. Air free, you don't worry about low air or blow up a tire. 5. The 10"×3.00-4 hand cart PU foam wheel reduce costs and efforts spent for replacing tires. 6. It has no Pb, Cd, Cr or other substances hurting the environment or the user's health. 7. The 10"×3.00-4 hand cart PU foam wheel is shock absorbing. 8. It is ideal for trucks, trolleys, tool carts, barrows, lawn mowers and many other applications.