Discover these pen holders designed for clipboards! Each set includes 12 pieces, ensuring you have enough for all your needs. The adjustable spring loops, with a diameter expandable from 7 mm to 18 mm, can hold pens and pencils of various sizes. Crafted from manganese steel, they are durable, rust - resistant, and have a long lifespan. These lightweight pen holders are a perfect match for your notebooks and are easy to carry anywhere. Their transverse style is not only practical but also adds a unique aesthetic. Ideal for students, teachers, postmen, and medical staff, they can be used at home, school, or in the office. They solve the common problem of losing pens, bringing more convenience to your daily work and study.