ADVANCED MATERIALS - This cushion is made of memory gel known for its high-density structure and excellent flexibility. Its design perfectly fits your body contour, providing maximum comfort and supportRELIEVE PAIN - Excellent elasticity can reduce the soreness and numbness that occurs when the hip muscles are compressed, and effectively relieve various pain symptoms, such as coccyx problems and sciatica. With it, the tired body will be better relaxedCOOLING & BREATHABLE - This cushion has a unique gel honeycomb structure, which greatly reduces heat transfer between the hips and the chair, increases air circulation and keep cool at the bottom for sedentary seatSUITABLE SIZE - Dimensions:16.14 x 13.78 x 1.18 inches. WEIGHT:2.27 Pounds. The right size makes it great for Office Chair, Computer Desk, Kitchen, Dining Room, Living Room, Patio, Couch, Recliner, Car, Truck, Train & Airplane Travel, ClassroomsANTI-SLIP & STABLE - The cloth cover of the seat cushion has many protrusions designed to increase the friction between the seat cushion and the chair, making it difficult to slip off the chair even if the buttock move frequently