Never-flat polyurethane foam caster wheels deliver the cushioned, shock-absorbing performance of pneumatic tires without the risk of deflation, ensuring consistent, maintenance-free mobility. With excellent traction, floor protection, and vibration reduction, they are perfect for transporting fragile loads across uneven surfaces— indoors or outdoors. The rigid construction of the caster rig ensures steadiness in straight-line transport and stability when used in conjunction with swivel casters for applications where some turning is needed.