Pebbles-Be Mine Cardstock Stickers: To/From Heart. Customize and embellish just about anything with these unique, high-quality stickers! This package contains ten 6-3/4x3-3/4 inch sheets with twenty stickers total. Acid free. Archival quality. 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.