Functions: using the chalk holder can keep your hands clean, and protect chalks from breaking, suitable for teachers, children's painting and writing
Usage: just press the chalk holder's top button, and put chalk stick from the front; The chalk holder allows you to adjust the writing length of the chalk, then release the top button
Convenient to store: equipped with an extra black velvet bag to store these chalk clips for easy storage and carry, not easy to lose
Quantity and size: 5 packs chalk keepers; Size: the overall length is about 10 cm/ 3.93 inch, 1.3 cm/ 0.51 inch in outer diameter, suitable for 9.5 to 10 mm chalk
Material: the chalk clip is made of aluminum alloy, not easy to get rust or erosion, sturdy and durable