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Applicable chalk holder:
Use this kind of chalk holder can not only keep your hands clean, but also protect chalks from breaking, suitable for teachers, children's painting and writing.
Press the chalk holder's top button, and put chalk stick from the front, it allow you to adjust the writing length of the chalk and then release the top button.
Length: 9.5 cm/ 3.74 inches
Outer diameter: 1.5 cm/ 0.6 inch
Suitable chalk diameter: 9.5 to 10 mm
Material: aluminum alloy
1 PCS Aluminum Alloy Chalk Holder Teacher's Chalk Clip Clutch For School Office Black - B07F2CDQJ4