This bag is suitable for 2 pens. Water-resistant and strong material. Wear ribbons on the back. Lined which provides extra insulation. Velcro so that the bag can be opened quickly. ID tag for telephone, address and possibly allergies. Dimensions: 18 cm long, 11.5 cm wide The bag can be worn on your belt or clip. This bag has an extra pocket on the front that closes with Velcro, for extra medicines. At the front of the bag is a transparent pocket the size of an ID card.