Feature: 1. ULTIMATE COMFORT FOR LOWER BODY: Designed on your waist, hip, and back, this donut pillow allows your back and legs to fully comfortable, providing exceptional comfort while seated 2. LIGHTWEIGHT AND SOFT CORE: Featuring a hollow inner core, this pillow is lightweight and soft to ensure it remains comfortable without becoming overly firm or flat over time 3. EASY TO CLEAN: Both the cover and inner core of the donut pillow are washable, ensuring easy cleaning and maintenance. They dry quickly, providing convenience and eliminating concerns about lingering odors 4. PREMIUM MATERIALS: Made with a hollow tube filling and 3D layer technology, the materials used in this pillow are designed to offer superior support and breathability for lasting comfort and durability 5. IDEAL SIZE FOR VERSATILE USE: With an inner diameter of 15cm and an outer diameter of 39cm, plus a thickness of 4cm, this donut pillow is suitable for use on office chairs, home sofas, or as a supportive back cushion Specification: Item Type: Donut Pillow Material: Hollow tube filling, 3D layer, pure cotton Inner Diameter Size: Approx. 15cm / 5.9in, Outer Diameter Size: 39cm / 15.4in, Thickness: 4cm / 1.6in (Manual measurement has 1-3cm error). Package List: 1 x Donut Pillow