Oioiooi - 木環固齒器 - Nice to Michuoioiooi Michu rattle is made of pure wood. Maple wood from France and Walnut wood from the United States. Just as different people have different skin texture, woods have different unique texture. There may be a knot in some areas, a pattern of wood, and different colors may vary from area to area. oioiooi hopes our babies can experience warm texture through this little toy. Since they are all made by hands, the darkness of the face, eyes, nose, and