LifeWyse Orthopedic Memory Foam Seat Cushion and Chair Cushion, Wheelchair Cushion for Tailbone and Sciatica Lower Back Pain Relief, Blue & Black ASSISTS IN BACK PAIN & SCIATICA RELIEF: Ergonomically designed, provides support and comfort while reducing pressure on the coccyx / tailbone with the U-shaped cut out and promotes healthy posture. Supports recovery from lower back problems, helps with most sitting pain due to sciatica, herniated discs, tailbone injuries, pregnancy back pain, hip pain, hemorrhoids and other spinal issues ALL-IN-ONE PREMIUM HIGH-DENSITY MEMORY FOAM CUSHION: LifeWyse's all-in-one features are unrivaled: NON-SLIP rubber bottom, BUILT-IN HANDLE for easy transport and machine-washable zippered 3D Mesh cover for EASY CLEANING. Made with premium quality 100% memory foam GREAT FOR OFFICE CHAIR, DRIVING AND TRAVELING: Provides comfort on most hard surfaces; office chair, desk chair, kitchen, car seat, airplane, rocking chairs and wheelchairs. Great for office use, truck drivers, frequent travelers, sporting events and pregnancy HOLLOWED CENTER: Hollow center space for ventilation, prevent bacterial propagation, Also no pressure for genitals and buttock. Healthy for hemorrhoids, prostatitis, post delivery recovery for mothers and other perineal and pelvic floor disorders.