Strong and reliable for long-term use: The pen holder is made of metal, designed for durable performance. The adhesive back allows for easy attachment 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 simple, functional accessory ideal for colleagues, teachers, friends, medical professionals, and more, helping to organize daily essentials. Wide application: Can be attached to dry, flat surfaces such as whiteboards, refrigerators, wipe boards, bulletin boards, maps, and calendars. Useful for holding pens, pencils, shopping lists, and other small items. Color: Black Material: Metal Size: Clip width 18 mm 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. Size may vary by +/- 1-3 cm due to manual measurement.