• 3" U-Shaped opening provides pressure relief for the coccyx tailbone area to help relieve lower back pain
• Constructed of highly resilient polyurethane foam for maximum comfort and durability
• Features a machine-washable, zippered cover with built-in carry handle
• Size 15" x 14" x 1-1/2"-3
• Covers available in camel & navy
• Foam meets CAL #117 requirements