4 pack of slate coasters. we have many different designs ready to go. All designed in house. laser etched in house. We do not do copyrighted images or logos. We do not buy or steal images to use. I spend time on the computer designing our images piece by piece. Let us know what category from the list you are looking for, and we can go from there. Beer Wine Coffee Romance Inspirational Biblical Bar drink recipes Monogramed Slate coasters are 4" x 4". foam type pads on the bottom. They are let unfinished. Most people spray on a top coat to make the laser etching stand out more. But this defeats the purpose of having a coaster in the first place. The top coat spray keeps the coaster from soaking up any liquid. Letting it bead up and run off the coaster and onto your table. The pictures really do not do them justice. We have around 100 designs, and growing weekly.