Used a few times, but it didn't suit me, so I'm selling it. Please check the condition in the images before purchasing. This posture support chair firmly supports your legs, hips, and lower back, allowing you to naturally maintain an S-shaped posture without straining. It provides a stable feeling as if your back is being supported by large hands, reducing the burden on your lower back during long hours of desk work or studying. [Maintains Ideal Posture with the Principle of Leverage] It props up the pelvis and naturally recreates the S-curve of the spine. The moment you sit down, your chest opens up, and the support power makes the fatigue in your lower back feel lighter. Continued use can also help improve posture. [Comfortable with High Rebound Memory Foam] The seat and backrest are made of high-quality memory foam. It cradles your hips while evenly distributing body pressure, making it comfortable to sit for long periods without pain. It can support up to 100kg. [Breathable Structure to Prevent Stuffiness] Numerous ventilation holes are placed in the backrest and seat to prevent heat buildup. It can be used comfortably regardless of the season. [Lightweight at 1000g, Usable Anywhere] Weighing only about 1kg, it's easy for women and the elderly to carry. You can quickly move it to your desired location, such as the living room, bedroom, study, or dining room. [Recommended for a Wide Range of People] - Those who experience lower back pain from desk work or teleworking. - Those concerned about slouching or poor posture. - Pregnant women, the elderly, and others who want to reduce the burden on their lower back. *Due to the structure that firmly supports posture, you may feel some firmness. If this is a concern, using a cushion in conjunction is recommended. *Please check the detailed dimensions in the images. *To offer it at a low price, we plan to ship it wrapped in cushioning material and placed in a bag.