Our birch monthly milestone markers follow baby by the month. Lay by baby's side on a blanket in lieu of month stickers for your little one. 3.5" wooden circles marking milestone from birth through 1 year. 13 discs include, "Hello World", months 1 - 11, and 1 year. Reusable for future children and eco-friendly, heirloom that can be passed down for generations to come. Thoughtful handmade heirloom baby shower gift. One size.