Strong and reliable for long-term use: The pen holder is made of metal, designed for durable performance. The adhesive back provides convenient mounting and is suitable for various applications. Retractable ring design: Features an adjustable spring ring that expands from 7 mm to 18 mm in diameter, accommodating most pen and pencil sizes. Generous quantity: Includes 10 adhesive pen holders. Compact and lightweight, they are easy to carry and store, providing ample supply for everyday needs. Practical and thoughtful: A functional accessory ideal for colleagues, teachers, friends, doctors, nurses, and more, helping simplify daily tasks. Wide application: Can be attached to clean, dry surfaces such as whiteboards, refrigerators, wipe boards, bulletin boards, maps, and calendars. Useful for organizing shopping lists, pens, pencils, and other small items, keeping them within reach. Color: Black Material: Metal Size: 18 mm width Package Contents: 10 x Pen Holder Note: Small parts. Not suitable for children under 3 years. Contents include only the items listed above. Due to lighting and display differences, the actual color may vary slightly from the image. Measurement may vary by +/- 1-3 cm.