NURSAL Memory Foam Seat Cushion for Lower Back, Tailbone, Sciatica Coccyx Hemorrhoid Pain Relief and Hip shaping PAIN & ACHE RELIEF: Assists in the relief and treatment of lower back pain, numbness, sciatica, and pressure sores. Promote a healthy sitting posture and reduces pressure on the coccyx, tailbone and hip bones while sitting or driving HEALTHY HOLLOW CENTER DESIGHN: Center hollow 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 100% PREMIUM QUALITY MEMORY FOAM - Our memory foam is 100% pure with no additives and is made of the exact same material as the world's leading memory foam manufacturers. Perfect for hours of sitting without experiencing any pain, aches, fatigue or soreness with office chair, desk chair, kitchen, car seat, airplane, or wheelchairs DURABLE & BREATHABLE: Made of breathable material, also the soft and breathable airy mesh cover keeps you cool and dry over prolonged periods of use. And the 3D mesh zip cover is easy to remove and clean 100% SATISFACTION GUARANTEE: Replacement or refund is available within one year without any reason