ink brush pen
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.8%return rate — above 6% kills the launch gate
Avg price
Great$22.30avg listing price — sweet spot $15–$100
Competition
Great35%top-5 click share — an open shelf
Market size
Good$627K$627K/yr · 730K searches
Conversion
Okay3.9%search→purchase rate — share of searches ending in a sale
Price range
Okay$5.65–$229.31cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Bad9,986.76avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Growth
Bad-21.1%90-day search growth — must beat 0% to launch
Brand share
Bad100%top-5 brand share — brand-locked demand
Competition
Clicks spread well past the top 5 (35% combined) — an open shelf where new products get seen.Brands
4 falling
Sellers
196
Top-5 brand share
100%
Open market
0%
- Tombow82%
- Pentel15%
- Kuretake3%
- Caliart1%
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 55 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Tombow 56187 Dual Brush Pen Art Markers Pastel 10-Pack. Blendable Brush and Fine Tip Markers
Tombow$16.704.7★41,369 rev
Tombow 62038 Fudenosuke Brush Pen 2-Pack. Soft and Hard Tip Fudenosuke Brush Pens for Calligraphy and Art Drawings
Tombow$5.954.7★41,110 rev
Tombow 56216 Dual Brush Pen Art Markers Cottage 10-Pack. Blendable Brush and Fine Tip Markers
Tombow$16.264.7★789 rev
Tombow 56179 Dual Brush Pen Art Markers 108 Color Set with Marker Case. Blendable Brush and Fine Tip Markers with Marker Case
Tombow$229.314.8★2,164 rev
Pentel Arts Portable Pocket Brush Pen (Medium Point) 1Pen & 2Refills
Pentel$7.884.6★2,624 rev
Newest
by launch date
Tombow Art Marker Collection: Pastel 10 Piece Dual Brush Pen Set with Blending Palette Kit
Tombow$35.670 rev
Tombow Dual Brush Pens Set - Manga Collection - 12 Colors - Flower & Bird - Includes Limited Edition Coloring Sheets and Water Brush
Tombow$50.370 rev
Tombow: Dual Brush Pen 3 Pack Set- Mermaids Fairies & Dragons - 30 Piece - Includes Blender Pens - Water Based Art Marker with Self-Cleaning Tip
Tombow$74.080 rev
Tombow Dual Brush Pen Set - Coffee Break Teatime & Happy Hour - 21 PC Set - Colorless Blender Pens Included - Art Marker
Tombow$58.150 rev
Tombow 56241 Dual Brush Pen Art Markers Coffee Break 6-Pack Water-Based Ink for Hand Lettering Watercolor Fine Art
Tombow$17.2924 rev
Trending
90-day click momentumTombow Dual Brush Pens Set - Manga Collection - 12 Colors - Flower & Bird - Includes Limited Edition Coloring Sheets and Water Brush
Tombow$50.370.0★
Tombow Dual Brush Pen Set - Coffee Break Teatime & Happy Hour - 21 PC Set - Colorless Blender Pens Included - Art Marker
Tombow$58.150.0★
Tombow Art Marker Collection: Pastel 10 Piece Dual Brush Pen Set with Blending Palette Kit
Tombow$35.670.0★
Tombow: Dual Brush Pen 3 Pack Set- Mermaids Fairies & Dragons - 30 Piece - Includes Blender Pens - Water Based Art Marker with Self-Cleaning Tip
Tombow$74.080.0★
Tombow Pencil Mechanical Pencil MONO Monograph 0.5mm Matte Pink DPB-141C
Tombow$6.594.7★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -21.1% search growth over the last 90 days.Peak months: Oct · busiest ÷ quietest = 1.8×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“The colors are vibrant”
“the Tombow brand is reliable for quality”
“Excellent eraser”
“writes beautifully”
“its super easy to hold”
“I just enjoy the experience drawing with these”
“The pens are of good quality”
“Worth every penny”
“As advertised”
“Excellent value for the money as comes with two cartridges of ink”
What buyers complain about
“It stopped working”
“dry out ink”
“Thats almost a 70% increase in price”
“Not for coloring”
“The quality of the applicator is awful”
“The ink leaks out while using if you aren't careful”
“So that is not a good thing for wanting them to write in calligraphy for some invitations or whatever purpose”
“Too many of these marker pends seem dried up or low on ink”
“it is no longer sticky”
“USED set”