BlissTrends Memory Foam Seat Cushion for Car Seat & Office Chair, Black | Ergonomic Tailbone & Sciatica Support Cushion with Removable Velvet Cover for Long Sitting Comfort, 3.35" Center Thickness

Ergonomic Tailbone & Pressure Relief Design — Strategically shaped cushion helps relieve sciatica, tailbone pain, hip pressure and improves posture during office work, driving, or wheelchair use 3.35 inches Center Thickness High-Density Memory Foam Cushion—The seat cushion measures 18.11 in x 16.14 in x 4.76 in and 3.35 inches center thickness high-density memory foam cushion, which provides superior support and comfort for hips and thighs, reducing pressure and offering long-lasting support even after extended sitting sessions Removable, Breathable & Non-Slip Cover — Premium soft velvet cover is machine-washable; anti-slip bottom ensures cushion stays securely in place on chairs, car seats or wheelchairs Universal Fit for Office Chairs, Car Seats, Airplanes & Wheelchairs — Fits most standard chairs, car seats or wheelchairs — perfect for home, office, travel, gaming or daily commuting