Winsor & Newton These ProMarkers are alcohol-based, non-toxic permanent ink markers. The professional quality dyes used provide for a smooth, streak-free finish and can be applied liberally to paper without damaging the surface. Great to use on a wide range of other surfaces, including glass, acetate, plastic, metal, textiles and more! The translucent colors can be blended for an almost unlimited palette, while single colors can be layered for added depth and shade. Each marker has twin tips; the fine nib for precise coloring and details and the broad nib for large color fills. Certified non-toxic and conform to standard ASTM D-423. 6- Makers Earth Tone Set Khaki, Sandstone, Tan, Terracotta, Walnut and Umber. 6-Marker Neutral Tones Set includes cool gray 1, cool gray 2, cool gray 3, cool gray 4, cool gray 5 and black.6-Marker Skin Tones Set 1 includes ivory, almond, satin, putty, soft peach and coral.6-Marker Skin Tones Set 2 includes burnt sienna, spice, cinnamon, tan, dusky pink and blush. 24-Color Arts & Illustration Wallet Set includes lemon, pumpkin, bright orange, red, crimson, hot pink, rose pink, orchid, violet, duck egg, cyan, true blue, midnight blue, turquoise, soft green, moss, grass, green, cocoa, saffron, putty, cool gray 2, cool gray 4 and black.48-Color Essential Collection Set contains ivory, pastel beige, blush, saffron, dusky pink, tan, sandstone, cinnamon, raw sienna, cocoa, umber, burnt sienna, yellow, sunflower, gold, mandarin, red, poppy, crimson, maroon, rose pink, magenta, orchid, purple, cool aqua, powder blue, sky blue, cyan, French navy, turquoise, midnight blue, meadow green, apple, lime green, bright green, forest green, pine, olive green, warm gray 3, warm gray 5, ice gray 1, ice gray 3, ice gray 5, cool gray 1, cool gray 3, cool gray 5, black and blender white. .