Pencils are actually chocolates made by product design firm nendo in collaboration with patissier Tsujiguchi Hironobu*. Each pencil is a different blend of chocolates. The kit comes with a pencil sharpener to create shavings to decorate your own desserts.
*Hironobu Tsujiguchi, the youngest pâtissier to ever win La Coupe du Monde de la Patisserie (a.k.a. the World Cup of Desserts),