Easy to Carry-Workable with your office chair, home seat, car seat, wheelchair, airplane, train, bed.Dimension: 15" * 13" * 3.5" ? How to clean:Recommend hand wash for that pillow stitches might split while spinning dry by machine.If you need machine wash, please put pillow into washing bag, use mild detergent, advised water temperature is not above 30 degree Celsius. Wash separately, gentle circle for spin dry, tumble dry low. Do not bleach. Do not iron. Body Pillow-Good to use as body pillow, you can use to lift your hip, head, neck,legs, ankles on bed or sleep face down on the hollow of pillow. Bed Sore Cushions-The hollow of butt pillows for sitting after surgery or pressure relief, help to keep your wound away from touching any surface of chair or bed, relieve the symptom of pain. Butt Pillows for Sitting-Widened force area of seat cushion, able to bare weight up to 200 lbs, unloads the pressure for sitting when suffering from back pain, tailbone pain, lumbar pain , leg pain , hip pain or any low back nerve pain, and help recovery from hemorrhoid, prostatitis ,sciatica, ischial bursitis, anal fissure, postpartum, post surgery, bed sore. Donut Pillows- Rectangle hollow design with premium quality PP filling for optimal support, will not flat like inflatable pillow or other hemmoroid cushions. Thick firm cushion gently lifts you up from seat chairs, evens the pressure of buttocks, pelvic and thighs.