Green Thumb, Poly Dumping Garden Cart, Patented Quick Release Dumping Feature, Back Wheels Pivot Forward To Ensure Smooth Operation & Easy Dumping, 4 Wheel Design Maximizes Stability On All Terrains, Maintenance Free & Rust Free Poly Bed, 10" Pneumatic Tires With Steel Rims, Zinc Plated Hardware, 500 LB Weight Capacity.