【Upgraded Black Color Gel Pad】: Our seat cushion is designed with 3-layer construction for maximum support and comfort. The pressure-dispersing layer evenly distributes pressure to each diamond-shaped cavity, while the ergonomic body pressure absorption layer and bottom support layer provide balanced support. 【Large Size Seat Cushion】: Measuring 42*40*4cm/15.8*15.4*1.6inch, our gel cushion is bigger and more comfortable for sitting. It's perfect for use in the office, at home, or while traveling. 【Super Ventilation & Made of TPE】: Our gel seat cushion is made of high-elasticity TPE gel constant temperature material, which effectively prevents and alleviates various pain symptoms. It also provides excellent ventilation to prevent steamy heat and keep you comfortable. 【Non-Slip & Stable】: Our cool gel cushion includes an anti-slip cloth cover to keep it securely in place. The soft and elastic gel material maintains its original shape and won't lose its support, even after long-term use. 【380 Day Quality Guarantee】: We stand behind our product and offer a 380-day quality guarantee. If you're not completely satisfied with your purchase, please contact us for a full refund. Your satisfaction is our top priority.