This tire and wheel set comes aired and ready to install. With a size of 4.10/3.50-4 inches, a tire diameter of 10.3 inches, a tire width of 3.3 inches, 1 3/4 inches offset hub, and 5/8 inches axle bore hole, these tires are one of the most common size and type of tires used on hand trucks, lawn mowers, and other wheeled equipment. Used for both home and commercial purposes, these wheels have a maximum load capacity of 300 pounds and a PSI of 30. And although these wheels are heavy-duty, they aren't designed for use as driving wheels. Instead, they are suitable for free- rolling applications including rear (idle) wheels for lawn mowers, hand truck wheels, and trail-behind attachments. The treads are perfect for outdoor use. Sawtooth treads provide maximum traction without harming grass. It also lasts longer and with its jagged tracks, it provides a solid grip on different terrains including turf, paved paths, dirt, and sand. Worried about punctures? The AR-PRO 10" heavy-duty replacement tire and wheel set has explosion-proof inner tubes. Use these wheels in any terrain without worries. Accidentally over inflated the tires or the summer heat increasing your tires' pressure? No worries. The inner tube's self-sealing capabilities work almost instantaneously, preventing injuries and damage to property. Not sure if these wheels will fit your equipment? Check the sidewall of your equipment's old or existing tires. The size, max load capacity, and tire pressure are all stamped on the side wall. To confirm the size, all you need to do is to measure the outside tire diameter. For the hub length and bearing size, you'll need to make manual measurements. Measure the hub bearing-to-bearing but for offset hubs like these 2-pack AR-PRO heavy-duty replacement tires and wheels, you can measure only the offset since its measurement (1 3/4 inches) is the one available for comparison.