Cork branches have a thick rough outer bark and sturdy interior. Perfect for mounting certain orchids and make an excellent addition to a growing case or display. This is a natural product. there will be variation in size, shape, diameter, and appearance from one piece to the next. The thin branches have a diameter of about 2 to 3 inches (5 to 8 cm). The branches come in two lengths: 12 inches (30 cm) and 24 inches (60cm)