The SHS Samhongsa 13.5"-18.5" Office Chair Lift Cylinder Type SG Class 4 is a high-quality office chair designed for comfort and functionality. With a cylinder lift mechanism, this chair allows for easy adjustment to find the perfect seating position. Made by the trusted brand SHS Samhongsa in China, this office chair is durable and stylish, making it a great addition to any office or workspace.