Our "Hello World" sign is perfect for delivery day photos. Perfect sizing at 4 inches round making it ideal for newborn shoots. Height: 4 Inches; Width: 4 Inches; Depth 1/8 Inches Super sweet for to use as a photo prop and keepsake! Would be a perfect gift for a new mama to be! This item is intended to be leaned or staged and has no hardware attached. RECOMMENDED PENS: We recommended using a roller ball pen or a Sharpie Ultra Fine Point Pen. Please don’t not confuse the Sharpie Pen with a Marker. We also suggest testing you’re desired pen on the back of the item for bleed.