Reducing Pressure: Donut pillow designed, Elevate your foot, injury ankle and wrist to prevent rashes, pressure ulcers and sores,reduce swelling.360 Rotatory : The foot pillow Keeps your foot and ankle in place comfortably, provide firm support and help to improve blood circulation.Comfortable: The ankle pillow can be adjusted easily. Suitable for using while you sleeping in bed or sitting down in a chair.High Density: Ergonomic designs, the ankle support pillow is made of high density sponge, not deformed and collapsed for a long time using, comfortable and easy to wear.Washable: With Soft breathable cotton cover, zipper designed, easy to remove and machine washable coverSpecification:Materail: High Density sponge +Cotton CoverInner Diameter: approx. 7cm/ 2.8 inchOutter Diameter: approx. 17cm/ 6.7 inchHeight: 10cm/3.94inchPackage Includes:1 Piece Foot PillowsNote:1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. Wish you a wonderful online shopping!