The Faber-Castell 3 in one hand-held sharper is the Brain Johnson of pencil sharper! Small, mighty, and shook all night long! It fits anywhere and the shavings don't get all over your other art supplies. The colored pencil sharper is my favorite because it makes just the right size point saving your colored pencils greatly. If you use chalk pastels pencils or charcoal pencils like I do the color pencil sharper is Angus Young you've been looking for! I don't have any jumbo pencils so I haven't used that sharper for what it's full capabilities. I mostly use that sharper to start brand new pencils.