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. Please contact us first for a price quote on larger orders or use coupon codes to save. 25 or more items save 25% (code: 25PLUS) 50 or more items save 30% (code: 50PLUS) 100 or more items save 40% (code: 100PLUS) 200 or more items save 50% (code: 200PLUS) Items can be multiples of a single item or several different. Enter code at checkout If you have any questions regarding this item, please hit the “Ask a Question” button next to the price and I will get back to you in 24 hours or less. Have a design or photo ready? You can email it to john @ designtimegnc.com or attach to an etsy message. Thanks