Providing pain-relieving support, the coccyx cushion is ergonomically designed to minimize pressure on the tailbone. Evenly distributing the weight, the thick cushion relieves painful pressure points, sciatica, herniated discs and lower back pain with long periods of sitting. The contoured cushion is sized to fit on most wheelchairs. Supportive memory foam interior measures 2.99” thick and is resilient for long-term use. Machine washable, the zippered seat cover is made with breathable polyester with a nonslip base for greater stability on smooth surfaces. Great for traveling, the contoured cushion includes a carry handle for easy portability.