Strong and reliable for long-term use: The pen holder is made of metal, designed for durable performance. The adhesive backing provides convenient mounting and is suitable for most surfaces. Retractable ring design: Features an adjustable spring ring made of manganese steel. Each ring expands from 7 mm to 18 mm in diameter, accommodating most pen and pencil sizes. Abundant quantity: Includes 10 adhesive pen holders. Compact and lightweight, they are easy to carry and store, providing sufficient supply for everyday needs. Simple and practical gift: Ideal for colleagues, teachers, friends, doctors, and nurses. A thoughtful accessory that adds convenience to daily tasks. Wide application: Can be attached to dry, smooth surfaces such as whiteboards, refrigerators, wipe boards, bulletin boards, maps, and calendars. Helps organize shopping lists, pens, pencils, and other small items, keeping them within reach. 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. Package includes only the items listed. Note: Lighting and monitor settings may cause slight color variations between the image and the actual product. Measurement may vary by +/- 1-3 cm due to manual measurement.