It can be kept clean during class timeChalk is not easy to breakMaterial: metalSize: 9 x1.3cmColor: Silvercolor:SilverInstruction manual:1. Reduce chalk opponents and contaminated clothing 2. Let your fingers no longer to worry about peeling 3. Let your delicate lubricated by hand is no longer chalk harm 4. Save chalk, chalk avoid being broken during use 5. Can be used for a long time6. The teacher's essential goods and exquisite senior gifts 7. This product is suitable for ordinary schools with a diameter of ordinary chalk 9-10mm(If you have not reached the end of the 9 mm chalk, chalk this may be too thin, too many places to go on a folder).If you can put a large chalk chalk sets apart the front end of the clip pull bigger.Chalk off accidentally inside, open the upper end of the small white cap,Top with a pencil, pen able to come out, and the method is very simplePackage Contents:1x chalk clipOnly the above package content, other products are not included.Note: 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.