Sunix lumbar cushion, back cushion with breathable 3D mesh, lumbar support for car seat, office chair, wheelchair, ergonomic des

Dynamic overall back support - The 2-wing support system of the lumbar pillow is flexible and ergonomically shaped. It includes a foam frame construction and 4 independent springs that provide a firm grip and respond appropriately to your body shape when you change your posture. 8 cm height range adjustment back cushions - Easy adjustment and positioning with a hand-screwed nut in the 8 cm height range, so that our winged lumbar cushion hits exactly the right place for your lower and middle back on most chairs. Breathable 3D mesh cover - This lumbar support is perfect for long hours of sitting and has a thick 3D ventilation grille cover and vents on the "wing" frame so that air can flow through and reduce the heat on your back. Posture Correction and Pain Relief - back support cushion office chair is shaped to provide the correct curvature of the correct spinal support. Not only does it keep your lower back in check, but it also relieves pressure along your entire spine by forcing you to sit up straight. Indispensable for computer operators, drivers and patients with back pain - the back support cushion comes with an extendable elastic band in case you want to attach it to most office chairs with a width of up to 50 cm or to car seats with a particularly thick backrest.