1. Who will need it? As long as we sit, we don't pay attention to our posture. It makes matters worse, not only for our back, shoulders, neck and spine, but internal organs as well, disrupting their proper function. Therefore we recommend it for those: - Suffering from sitting for long hours; - Willing to reduce back pain - Having coccyx or tailbone issues - Having sciatica, sciatic nerve damage - Seeking for pelvic pressure relief hip pain relief 2. Why choose our Ergonomic Coccyx Seat Cushion? It will help with: - Reducing back pain - Keep a good sitting posture - Help with spine alignment properly - Reduce hemorrhoids - Promoting blood circulation to the lower extremities - Help reduce pressure on the spinal column and tailbone after back surgery 3. Where could we use? Is it worthy of being invested? Removable Machine washable cover;Can be taken to anywhere, Suitable for suitable for anywhere, such as: - Office desk chair - Home recliner, sofa, or dining chair - Wheelchair or walker with seat - Any vehicle - car, truck, RV, or bus - Traveling via airplane, train, or boat 4. Specification: - Dimensions: 45 cm x 35 x 7cm(17.8 in x 13.8 in x 2.8in) - Premium memory foam.