I am a follower of these pencils gouache-I have a large family and I am maternal assistant and I can tell you that these rods are used here. So they are creamy application is easy even for those who hardly nappuient their pencil format on Pricipe glue tubes ensures good grip. After it lets his imagination: drawing, highlighting, painting ... The object pencils works fine also on the glass so you can decorate your windows "Happy Birthday" Easter rabbits or Father Christmas .. .. (After a sponge, washing up liquid and a cloth).
I add to the general comment that the metal version is nice but like all "Metals" so do not expect it shines a thousand lights. The colors are beautiful but it's more of a brilliant effect.