Adult Booster Seat Cushion for Chair, Extra Thick Lift Cushions for Elderly, Office Chair Booster Seat Riser Cushion Extra Firm Foam for Height, Seat Pad with Adjustable Strap for Office, Wheelchair Extra Thick Seat Cushion - Your Sitting & Standing Assistant Features: Lift your hips (5.5" thick higher front & 4" thick lower back), improve sitting posture, enhance field of vision, helps get up and sit down faster and easier. Soft, smooth, removable velvet cover, allows for easy cleaning, to ensure that your cushion remains clean after repeated uses. Thick high-density foam, comfortable to sit on for long periods of time without sagging, pressure relief for tailbone, hips and lower back. Chair cushion for elderly features a higher front and lower back design, reduces lumbar & tailbone pressure, prevents slouching or slumping, improving sitting posture. The combination of silicone anti-slip dots and adjustable straps creates unparalleled stability. Specifications: Dimensions: 17.7"× 18.9"× 4"~ 5.5” Materials: Premium velvet cover + high-density foam Packaging includes: Thick firm chair cushion ×1 Vacuum-Packaged: Please allow 48~72 hours for full expansion after opening the packaging Suitable for: Elderly Post-surgery Office worker Mobility-impaired individual Wheelchair user Fits on: Wheelchairs Car seats (Place the lower end in front when using it on a car seat) Office chairs Dining chairs Various chairs with backrests