【Premium Memory Foam with Cooling Gel Pad】-- The inner core of the office chair armrests is made of pure memory foam with moderate hardness that provides a comfortable feeling with a soft touch. The memory foam cushion includes a cooling gel insert on the top to maximize comfort by keeping you cool and absorbing body heat. 【Contoured Arc Design】-- We designed the gaming chair armrest pillow with a unique arc shape that better fits your wrist, arm and elbow with extra support and comfort. The armrest pad acts as a riser for office chairs, gaming chairs, desk chairs and wheelchairs by increasing the height of the chair arms. 【Breathable & Removable Mesh Cover】-- In addition to the cooling gel pad, our armrest pads come with breathable mesh covers to dissipate heat. Velcro straps and anti-slip particles at the bottom allow the chair pads to be firmly installed on the chairs. The hidden zipper makes the mesh cover detachable for easy cleaning and machine washing. 【Thickening and Widening