Features: Strong and reliable, long-term use: the pen holder is made of metal, which can be pasted for a long time; the adhesive design on the back brings convenience and is suitable for most occasions. Retractable ring: Manganese pen holder with adjustable spring ring, the diameter of each ring can be expanded from 7 mm to 18 mm, which can accommodate most sizes of pens or pencilsAbundant quantity: You will receive 10 adhesive pen holders, which are small and light, easy to carry and store, enough quantity to meet user needs. Simple and practical gift: The pen holder is very practical for colleagues, teachers, friends, doctors, nurses, etc., it is a good gift to make their life easier. Scope of application: The pen holder can be stuck on dry surfaces such as whiteboards, refrigerators, wipe boards, bulletin boards, maps, calendars, etc. It is even a good helper for storing shopping lists, pens, pencils, etc.These pen holder clips help store small things and save users from searching for them all the time. Specifications: Color: black Material: metal Width: 18MM Package Contents:10 x pen holder Note: Please keep from children under 3 years old.Only the above package content, other products are not included. Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.