The Hi-Run Stud Wheelbarrow 4.10/3.50-4 Pneumatic Assembly Tire is a complete 10-inch wheelbarrow tire and rim set with max 300 lb load capacity. Each Hi-Run 4.1/3.5-4 wheelbarrow tire assembly includes a universal bearing kit—2 pcs 1/4-in. spacers, 2 pcs 1/2-in. spacers, 2 pcs 3/4-in. bearings, and one pre-installed 5/8-in. bearing—plus a grease fitting for stud mounting and easy maintenance. The pneumatic rubber tire absorbs shocks on gravel and dirt while the stud tread grips both ways without damaging grass. Homeowners use this 4.10/3.50-4 replacement wheel for smooth year-round hauling, garden cleanup, and light-duty yard work.