Want to creep out your guests before they arrive to your Crime Scene Investigation party Then use the PSI Toe Tag Invitations as a way to invite our guests to your CSI Party Perfect for birthday parties, and Party Scene Investigations Each invitation is made of yellow card material with a place on the back to write in important information invitations and 8 envelopes There is even a tiny hole at the top of the card where you can insert a string too if you would like Features yellow and black print invitations Front PSI on the front in black writing Back has a space for time, date, location, and RSVP information Recommended for indoor use only or under a covered area Double-sided feature Dimensions 3 W x 5.5 H Material s paper Pack includes 96 of the invitation shown Note Picture shows front and back design