SUPPORTIVE DESIGN FOR COMFORT: Ergonomic lumbar support cushion set aligns spine, supports lower back, relieves tailbone pressure, reduces long sitting strain, enables longer comfortable sittingHIGH-DENSITY MEMORY FOAM: Premium high-density memory foam adapts to body shape, retains form after prolonged use, reduces pressure points, targets lower back and gluteal area for lasting supportBREATHABLE & REMOVABLE COVERS: Soft breathable 3D mesh fabric for airflow, keeps cool and sweat-free. Covers removable and machine-washable for easy cleaning, fits wheelchair useSECURE & STABLE DESIGN: Adjustable fixing straps for back cushion, non-slip rubber bottom for seat cushion, prevents movement, provides steady positioning for long sitting