Magnet. Fold over magnetic bookmark, or use as a magnetic clip to hold papers to any surface with repositionable adhesive strip on back. Leaves no residue. House shape shown is 3/12" x 3", or ask for other shapes and sizes in stock or custom made to order. Suggested uses: walls, lockers, refrigerators, cubicles, doors, conference rooms, air conditioning/heating units, windows, dashboards, etc.