The suit case is very easy and comfy to use, which make my work so convenient to carry with. Now I can create my works wherever I like. 100 color pencils are totally enough to express my imagination, may be more. I used to draw pictures with only 20 colored pencils. They made me crazy sometimes if I want to make some special effect. I had to use all my energy to mix two or three colors, however, the color I want has been just there. They seem to be particularly ready and waiting for me there.