Thickened Cushion: Made of high-density compressed foam, this saddle stool features a cushion size of 14.8 x 14.1 in with a thickness of 2.4 in, offering a 20 % increase in thickness for enhanced comfort. The leather seat surface is breathable, durable, easy to clean, and resistant to deformation or fading, even with long-term use. Ergonomic Saddle Design: This ergonomically designed rolling stool features a 'saddle seat' design, which aligns the legs with the seat surface to relieve pressure on the waist and legs. It helps prevent poor posture caused by spinal tilt and back pain, promotes proper posture, and reduces fatigue from sitting for extended periods. 450 lbs Weight Capacity: Our office stool base is widened to 21.3 in / 54.9 cm, with a sturdy metal structure that supports up to 450 lbs. Rest assured, we use an SGS-certified three-stage hydraulic gas lift, so you won't have to worry about metal bending. You can confidently rely on the durability of this chair