【Superior Quality Memory Foam with Refreshing Gel Cushion】 The inner core of the desk chair is made of pure memory foam, which has moderate hardness and soft touch, providing a sense of comfort. The memory foam cushion has a refreshing gel insert on top to keep you cool and absorb body heat to maximize comfort. Curved Designer Profile: We designed the chair armrest cushion with a unique curved shape to better fit your wrists, arms, and elbows, providing additional support and comfort. The armrest cushions act as boosters for office chairs, gaming chairs, office chairs, and wheelchairs by increasing the height of the chair armrests. 【Removable Breathable Mesh Cover】 In addition to the refreshing gel cushion, our plumbing cushions also come with a breathable seam that evacuates heat. Velcro straps and non-slip particles on the underside allow the chair cushion to be securely attached to the chair. The hidden zippers make the mesh removable for easy cleaning and machine washing. 【Thickened and Enlarged Design for All Types of Chairs】 The size of the armrest is 25 * 10 * 7/5 cm (single), suitable for most 3 to 6 inch armrests. Our chair armrests are thick and extra wide to provide you with additional support and comfort. It adapts to a variety of office chairs, gaming, dining, and wheelchairs. Note: Data is all measured manually, please allow an error of 1 to 3 cm due to light differences and display, there may be color differences, please refer to the actual item received.