Chalk diameter 4* height 2.5cm, gram weight 19g,3 colors, from left to then purple, blue, yellow. A total of 3 PET blister shell +E tile background plate into the window color box is 1 set, 4 sets into the double tile outer box. Recommended color box face paper 300g, color box reflective can not see corrugation lines. UV on color box. The middle of the upper and lower openings of the color box should be sealed with transparent round stickers, and the upper side of the back should be affixed with transparent plastic hooks along the middle. The hooks should be folded down in half before entering the outer box.

6*3*20