Size specification a cool wax stone about 3 cm Material 100% american soybean wax; natural mineral stain, nontoxic reassuring Applicable age 3~ Content accessories 16 colors cool wax stone each one (Red, pink, blue, sky blue, green, light green, dark yellow, yellow, Orange, peach, purple, light purple, brown, brown, black, gray) With harness pockets, 3 characters with color cards, scan variable 3D with App American of origin ◎Learn to write from graffiti◎ Crayons are almost the first tool for all early childhood exposure to painting and writing. American cool wax stone special patent design, multi-point, face, can easily draw large area, Colorful easy to color, stackable color, mixed color, exterior like stone, Let the child instinctively grasp the thumb, forefinger and middle finger at three points, easy to carry the pen, Training hands, eyes, brain coordination in child mapping, Especially the development of small hand muscles and fine action has a positive effect on children's future writing.