These are top quality water color pencils. Just a small amount of water activates the vibrant pigments, so you could use them in coloring books with very little water and get minimal paper buckling and bleed through. The Faber Castell quality minimizes breakage and you'll need very little sharpening so your pencils will last longer.triangular shaped grips are comfortable. The pigment cores are very durable, so minimal breakage. If you're getting all of these collections, the 9th pencil is a silver or gold pencil, but that is the only duplication between sets with the exception of a red pencil included in both red and yellow sets. I'm hoping to find a neutral color family set.