Crate Paper-Heart Day Shaped Clips: XOXO. These clips are the perfect addition to cards, layouts and much more! This package contains twelve paper clips in two designs (six of each design) on one 5-1/4x3-1/4 inch backing sheet. WARNING: This product contains chemicals known to the state of California to cause cancer, birth defects or other reproductive harm. Do not mouth or chew. Imported.