Shades of gray, black and white are included in this pack of neutral color alcohol markers. These permanent markers feature alcohol-based ink that's perfect for cartooning, designing, rubber stamps, clear stamps and more! Neutral colors included are N885, N887, N889, N881, N883 and N910 Black. Safe and non-toxic. Conforms to ASTM D-4236. Plastic. (6 pcs. per unit) 5 1/2"