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Patented curve design: AUVON has developed a lumbar cushion with an innovative precise support design. The scientifically designed convex blocks can naturally adapt to the structure of your waist to optimise position and thickness and give you a comfortable experience! Zone design: this back cushion is divided into 4 areas to enclose your back. The upper arched area adapts to your upper back and provides pleasant comfort. The lower support area is made of high density memory foam and provides targeted support. The side envelope zones adapt to your waist area. BREATHABLE & COOL SEAT RELIEF: Crafted from a honeycomb breathable fabric and combined with side mesh inserts, this chair cushion for back support provides ventilation with lasting freshness. Even after sitting for a long time, the lumbar support car keeps your back cool and comfortable, free from sweating and stuffy feelings. STAY ON PLACE DESIGN: The double straps and non-slip backing ensure that the back cushion car stays firmly in place and provides continuous support comfort. Say goodbye to constant and annoying slipping and readjusting with this back support cushion for office chairs. MEET YOUR NEEDS: This lumbar support is ideal for people who sit on the office chair, car seat or gaming chair for a long time. It measures approximately 18\