Thank you for viewing. I tried it out, but I'm selling it because I've changed chairs. There are two in the image, but only the gray one is for sale. It will be shipped with tags. 【Lever Principle & Ergonomic Chair】 The DEZIYUA Pelvic Support Chair perfectly supports three key points: legs, buttocks, and lower back, requiring no effort. It's like a large hand gently supporting your back, and your posture always forms an ideal "S" curve! Even during long hours of exercise or work, sitting in this posture correction chair, you'll instantly feel your body open up, relieving fatigue in your lumbar spine. With long-term use, not only will your posture improve, but it will also help prevent lumbar disc herniation. It is suitable for office workers, teleworkers, students, the elderly concerned about their lumbar health, and pregnant women with lower back pain.