Cooshii Memory Foam Seat Cushion Ergonomic Coccyx Support for Posture, Sciatica & Long Sitting – Office Chair Cushion for Car, Desk, GamingFIRM SUPPORT THAT HOLDS ITS SHAPE: Made from high-density memory foam that stays firm under you instead of sinking, this support cushion keeps you properly lifted and stable through hours of sitting — structured support, not a soft seat you sink into and slump.ENCOURAGES UPRIGHT, COMFORTABLE POSTURE: Engineered to position your pelvis and spread your weight evenly, this ergonomic cushion gently guides you to sit upright rather than slouch. The firm base and U-shaped coccyx cut-out work together to take pressure off your lower back, hips and tailbone.BUILT FOR LONG SITTING: A firm supportive cushion designed for people who sit for hours — desk workers, drivers, wheelchair users and anyone who needs steady, fatigue-fighting comfort that won't go flat halfway through the day.FITS ANY CHAIR & GOES WITH YOU: A versatile sitting cushion for your office chair, car, desk or dining chair, and slim enough to use as a car seat cushion for hip support on long drives. A built-in carry handle makes it easy to move, and the non-slip base keeps it locked in place.WASHABLE COVER & LASTING DENSITY: Unlike soft cushions that flatten within weeks, this firmer high-density core keeps its shape for years, and the breathable cover unzips and machine washes whenever it needs a refresh.
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