12,000 Brochures will drill with one .25" hole in top left corner. Each brochure will then have a rubber band hand-strung through the 12K brochures and the 12K info cards. Rubber band will then loop back through itself to secure. Shrink wrap in 25's and indicate with printed sticker which shrink wrapped packages are the 12,000 that are drilled and have the info card secured to them with a rubber band. 