Product and Specifications:Innovation Memory Foam Seat Cushion:Unlike other normal seat cushions, our back cushions and seat cushions has a donut hollow positioned in center to increase the height of edge, which can support and give relief of your coccyx, tailbone, legs and butt. It is engaged in helping relieve lower back and sciatica discomfort after long time sitting. office chair cushion is the newest and best desk chair cushion on the market. Upgrade your sitting experience with our comfort seating cushion from now onNever Lose It's Shape:It has ergonomic design and the perfect 3D contour curve to fit butt shape, reducing pressure of bone during sitting, helps improve posture and maximize support and comfort to sit for long periods of time, promoting healthy posture perfectly. You can sit on this tailbone pain relief cushion everyday and never worry about flattening.Large Size and Seating Comfortably:Compared with other traditional chair cushions that are too small, our office chair pad has 45.5x39x11cm, Inside size: 19.5x16cm generous dimensions, more suitable for all kinds of body shapes and sizes, fits most chairs for you. Add our office chair pads to your home accessories list now it is the best seat cushions ideal around your home, office, and car.Wide Range of Applications:The chair cushion is available for all kinds of occasions such as desk chair cushion for long sitting, car seat cushion, wheelchair cushion, seat cushion for computer desk chair, gaming chair pillow, lumbar support cushion, chair pads for office workers, seat cushion for back pain, sciatica pain relief cushion, dining chair cushion, kitchen chairs, bleachers, truck driver, pregnant chair pad, airplane or train.Breathable and Prevents Bottom Sweats:The other seat cushions don't allow air to circulate, making you sweaty. Our chair pad has a breathable anti-slip polyester outer cover, letting you sit comfortable and cool, perfectly absorbs sweat and breathes to prevent sultry.Specification:Material: memory foam and polyesterProduct size: 45.5 x 39 x 11 cm, inner diameter: 19.5 x 16 cmWeight: 260g- Waterproof material, thick PVC material- Easy to clean, simply wipe the surface with a damp clothPackage contents:1 x Seat Cushions for Office Chairs Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.