<br><b>Approx. 18.12”(length) x 16.5”(width) x 1.2”(thickness)</b></br> <br><b>Big Ant is a registered brand focusing on home Car Office textiles industry for over 25 years.</b></br> <br><b>We are specialist in chair cushion/seat cushion industry, sold more than 200K cushions and had thousands of happy customers.</b></br> <br><b>Big Ant Gel Memory Foam Chair Cushion Features are as followed.</b></br> -Gel And Memory Foam Cushion Design</br> -Back Pad Designed Nonslip</br> -Portable with Carry Handle</br> -Ergonomic Design</br> <br><b>Ergonomic Design</b></br> According to the design of human body curve, Big Ant Gel Seat Cushion perfectly fits the buttocks curve, sit up and stand! Advanced column-buckling technology disperses your body weight evenly, eliminating pressure on the uncomfortable pressure points.</br> <br><b>Cool in Summer</b></br> Gel brings you Cool! Memory Foam brings you Comfortable! Neoprene Waterproof Seat Cover brings you Breathable!</br> <br><b>Portable Feature</b></br> Brought with you wherever you go. Gel chair seat cushion made with built in carry handles designed for easy transportation between your home, office, car, airplane, wheelchair, at a show or ball game.</br>