ValueRays Chair Warmer, USB Heated Warm Chair Pad, Infrared Heat Chair Pad, Warm Office Chair Pad INSTRUCTIONS: Unzip the chair pad's cover and make sure the heating element is placed on the top of the foam pad. Reposition the heating element to suit your needs. Do NOT place heating element under the pad. Seat warms using a small carbon fiber heating elements to produce infrared heat. The longer you sit, the warmer it gets. Reposition the heating element on top of the foam pad inside the top side of the cover. Cover is hand washable. Do NOT wash cords or heating element. Air dry cover. USB connects to computer or any functional USB port, adapter or power bank. <span class="a-text-bold">INSTRUCTIONS: </span>Unzip the chair pad&#039;s cover and make sure the  heating element is placed on the top of the foam pad. Reposition the heating element to suit your needs. Do NOT place heating element under the inside pad. You want the heating element between the fleece cloth the top of the inside cushion. Seat warms using a small carbon fiber heating elements to produce infrared heat.  The heating element measures about 6 x 8 inches. The longer you sit, the warmer it gets. Reposition the heating  element on top of the foam pad inside the top side of the cover. Cover is hand washable. Do NOT wash cords or heating element. Air dry cover. USB connects to computer or any functional USB port, adapter or power bank.