From the manufacturer:
Contains: (2) Charcoal Pencils, (4) Vine/Willow Charcoal Sticks, (3) Compressed Charcoal Sticks, (1) Kneaded Eraser and (1) Sharpener
Charcoal Pencils are a form of dry art medium made of finely ground organic materials that are held together by a gum or wax binder, same as compressed charcoal. The amount of binder used determines how hard or soft the charcoal will be.
Prop. 65 Warning: These products contain a chemical known in the State of California to cause cancer.