These herbarium pens are definitely one-of-a-kind. Each ballpoint pen is made using real preserved flowers immersed in herbarium oil. What makes it extra special is that the pens can be personalized. There are twelve beautiful colors to choose from. Each pen measures 14.5 cm in length. The ink is black and refillable. The pens come with a case and one FREE refillable black ink cartridge. It will be wrapped beautifully in a cello bag and tied with a matching ribbon. This is a perfect gift to personalize for teachers, friends, and graduates. Please allow for some variation in color as displayed on different devices and screens. Actual colors may vary.