Marketing Holders Clear Ballot Suggestion Box with Header and Lock 12" x 12" With Header Sign Great for Shows and Expos Lot of 1 Marketing Holders Clear Ballot Suggestion Box with Header and Lock 12" x 12" With Header Sign Great for Shows and Expos Lot of 1 Slot Size: 4 3/4" x 1/4" Locking, Keys included Header Attachment High Quality Premium Acrylic