1. Sturdy and reliable, suitable for long - term use: The pen holder is made of metal and can be pasted for a long time. The adhesive design on the back is easy to use and suitable for most occasions. 2. Adjustable rings: The pen holder made of manganese is equipped with adjustable spring rings. The diameter of each ring can be expanded from 7 mm to 18 mm, which can accommodate most sizes of pens or pencils. 3. Sufficient quantity: You will receive 10 adhesive pen holders. They are small, lightweight, easy to carry and store, and the quantity is enough to meet the needs of users. 4. A simple and practical gift: This pen holder is practical for colleagues, teachers, friends, doctors, nurses and other groups. It is a good gift that can make their lives more convenient. 5. Scope of application: The pen holder can be pasted on dry surfaces such as whiteboards, refrigerators, wipe - off boards, bulletin boards, maps, calendars, etc. It is also a helper for storing shopping lists, pens, pencils and other items. These pen holder clips help to organize small items so that users don't have to look for them all the time. 6. Color: Black 7. Material: Metal 8. Size: Width 18 mm 9. Package contents: 10 pen holders 10. Precautions: - It is a small item. It is recommended to keep it out of the reach of children under 3 years old. - Only the above - mentioned package contents are included, and no other products are included. - Due to lighting and different monitors, the color of the item in the picture may vary slightly from the actual one. The allowable measurement error is ±1 - 3 cm.