a set of 12 metal dies measuring 0.5x0,5inch (1.3cm x 1.3cm) Planner reinforcements give support for the ring openings on your planner pages. Mix them, match them, stack them. These decorative reinforcements are a perfect way to add extra charm to your planner pages. Tip. Place doublesided adhesive on the back of your cardstock before running these dies through your die cutting machine. It will make adhering to your pages much easier.