Things might get a little wild at your Crime Scene Investigation party, and you may need to protect your furniture. So, protect the top of your bar with the PSI Coasters. You could also toss these PSI Coasters around your bar or party area for added decoration too! There are 8 Party Scene Investigation coasters to a package. Each PSI coaster measures 3½ inches, and they are made of coaster board. The Party Scene Coasters come in assorted designs. Sorry, specific designs cannot be requested.