The markers are used - I did not test all of them but did try half dozen or so and they all worked great.
The Creative Expert 36 Permanent Crafting Markers - Dual Tip
ArtSkills Dual Tip Fine & Brush Tip Markers for Adult Coloring, Brush Markers 50-Count : Arts, Crafts & Sewing
The Creative Expert Markers Review: Cheap Marker Finds
Dual Tip Markers, Brush Tip and Fine Tip, 8 Vivid Colors, Great for coloring, lettering, and drawing
Dual Tip Brush Markers, 8 Count
Dual Tip Markers – These brush tip markers also include a fine tip at the other end to create a variety of strokes. Use these markers for adult
ArtSkills Dual Tip Fine & Brush Tip Markers for Adult Coloring, Brush Markers 50-Count
BRUSH & FINE, DOUBLE TIPS, DOUBLE CREATIVITY: Ohuhu markers for adult coloring books are a must-have for your next masterpiece. The 0.4mm fine tip can
Ohuhu Markers for Adult Coloring Books: 36 Colors Coloring Markers Dual Tips Fine & Brush Pens Water-Based Art Markers for Kids Adults Drawing
Kingart Watercolor Brush Markers - Set of 36
BIC Magic Marker, Flexible Brush Tip (4.5 mm), Assorted Colors, Kids Coloring, 36-Count : Office Products
Kingart Studio, Soft Tip Watercolor Brush Marker Set , Set of 36 Unique Colors
About the product: These dual tipped marker pens are a must-have for your next masterpiece. Use the brush tip for coloring, shading, and blending, and the fine tip for smaller details. You can do it all with one marker! 36 gorgeous colors never had a marker set quite this diverse. You'll get a huge range of vibrant, highly-pigmented colors. Each set includes primary colors and complementary colors, and blends beautifully to add dimension to your artwork.
Ohuhu Markers for Adult Coloring Books: 36 Colors Coloring Markers Dual Tips Fine & Brush Pens Water-Based Art Markers for Kids Adults Drawing
You Want - A set of high quality art supplies with double ends, Aen Art Dual Tip Markers are combined with fineliner pen and brush marker will provide
Dual Markers Brush Pens, 36 Fine Point Art Marker, Double Tip Colored Pen for Adult Coloring Hand Lettering Writing Planner