Round up party guests for your chiller thriller with Chills & Thrills Halloween Invitations Value Pack! Chills & Thrills Halloween Invitations Value Pack features a whimsical trio of skull and crossbones characters with spaces on back to fill in the pertinent party details. This scary fun invite package includes 20 postcard invitations with envelopes each 6 1/4in x 4 7/8in, plus 20 envelope seals and 20 "Save the Date" stickers.