Type:Donut Seat Cushion, Pain Relief Seat Cushion, Thick Memory Foam Cushion, Seat Cushion, Office Chair Cushion Our office chair cushion offers relief from sciatic nerve discomfort, ensuring you can stay focused throughout the day. Features: Filled with slow-rebound memory foam, it provides an excellent cushioning effect, effectively alleviating pressure on the waist. The hollow design and curved shape help alleviate pressure on the sciatic nerve, relieving discomfort. Specially designed 4D mesh fabric offers outstanding breathability. Differentiated improvements between men's and women's cushions, designed according to ergonomics to provide comfortable support tailored to different gender needs. In addition, this thick chair cushion also helps to improve posture and relieve sedentary fatigue. Perfect for office, home, travel, game stands, car seats, or wheelchairs. Specifications: Material: Polyester+Memory Foam Product Size(LxWxH): 44 x 41 x 7.5 cm Package Contents: 1 x Seat Cushion Please note: For vacuum compression packed, please put the product in the sun to recover fluffy in shape. Due to manual measurement, there might be a tolerance in the product size. Due to the lighting effects and shooting angles, the color of the item and that shown in the picture might have a nuance.