BNWOT Chameleon double sided brush tip & fine tipped blending markers. Also have just the tips which are included. These markers are so neat you hold them vertically touching the desired color tip to the white tip to lighten the color so you can blend your color. The longer you hold the color tip to the blending tip the lighter the color becomes. Then just color and as you color the color gradually gets darker. Willing to sell just the tips or individual colors. comes with extra tips to change when the tip wears out