This 10" x 3-1/2" flat-free wheel caster features a pneumatic design with foam construction that eliminates the risk of flats while maintaining cushioning and shock absorption. The swivel mechanism allows for smooth, multidirectional movement, improving maneuverability in tight spaces. With a 1/2" axle diameter and a sturdy load capacity of up to 350 lbs, this caster is ideal for heavy-duty applications where durability and reliability are essential. Its 3-1/2" tread width provides stability and better weight distribution, ensuring consistent performance on various surfaces without maintenance concerns related to air pressure.