HELP ALLEVIATE SCIATICA AND LOWER BACK PAIN: Plixio's coccyx pillow has been ergonomically designed to help take pressure off of the user's lower back or tailbone and offers orthopedic tailbone pain relief while sitting. This gel cushion promotes healthy posture and proper spinal alignment. ERGONOMICALLY SHAPED WITH PRESSURE-RELIEVING CUT OUT: The U-shaped design, with its cut-out center and contoured surface, removes pressure from the coccyx to ensure the tailbone hovers over the surface of the seat, thereby alleviating any discomfort caused by sitting for extended periods. COOLING GEL MEMORY FOAM SEAT CUSHION: This coccyx cushion is made from high-quality memory foam to offer comfort and to help relieve back pain, tailbone pain, and sciatica. Layered over the memory foam is a padding of cooling gel meant to keep users cool and comfortable throughout the day. This cushion is ideal for office chairs, wheelchairs, airplanes, or for use in a car. Great for short and long trips.