Purchases made on Facebook Marketplace will need to email or message photos for order. Purchases made on website use upload button in description. We print these using a sublimation process onto the white, fabric surface. Coasters are 3.5 inch square, 1/4 inch thick and have a black rubber backing All custom designs, requests are welcome. Previews for custom items will be provided for approval prior to a completed item being shipped. These are printed and pressed by hand and will be mailed out within three days of placing your order.