Crystal Velvet Fabric: Covered with soft crystal velvet for a luxurious, smooth feel that is gentle on the skin. The fabric provides a comfortable seating experience, helping you stay relaxed during long periods of sitting. Space Memory Foam Core: The cushion uses space memory foam that conforms to your body shape for support. The foam rebounds quickly to maintain its shape, delivering consistent comfort over time. Ergonomic Donut Design: Measuring 42 cm by 37 cm with a 9 cm inner hole, the donutshaped cushion relieves pressure on the tailbone and surrounding areas. This design is well suited for extended sitting, whether you are working, traveling, or resting. Versatile Usage: Compatible with office chairs, car seats, wheelchairs, or as a floor cushion. Its universal design makes it easy to integrate into various seating setups for enhanced comfort wherever you go. Use Scenarios: Allday office work or study sessions to reduce tailbone pressure and improve seating comfort. Long drives or frequent travel to minimize discomfort from continuous sitting. Home or care settings on wheelchairs or as a floor cushion to provide stable, comfortable seating. Key Attributes: fabric surface, space memory foam core, 42 cm x 37 cm footprint, 9 cm inner hole, donut ergonomic shape, suited for office, vehicle, wheelchair, and floor use.