Quilling strips in a mixed pack of 100 dark center strips (start out light and get darker and then get light again). Each pack has 10 strips of each of 10 colors (red,orange, yellow, opal green, bright green, blue, pink, lilac, brown, black). These are American papers by Quilled Creations; the strips are 12" long and 3/8" wide. We also stock dark center papers (91911Q Dark Center Mixed pack 1/4"1Q) from J&J in England. The colors are very similar. Paplin also has a mixed pack of dark center colors (although they call them graduated). Their colors are different from Quilled Creations and J&J, we stock the Paplin mixed packs (P4100Q) and individual colors in all four widthsQuilling strips in Graduated ColorsQC2545-Quilled Creations mixed pack of 100 dark center  (start out light and get darker and then light) strips. Each pack has 10 strips of each of 10 colors (red,orange, yellow, opal green, bright green, blue, pink, lilac, brown, black). These are American papers, the strips are 12" long and 1/8" wide.