Window Pens
FailDemand is soft, at -12.3% this quarter, so Window Pens is a Fail.
- Flapen Score
- 45 / 100Ranks 455 of 835 Stationery & Office Supplies niches · −2 vs the category median of 4745
- Market size
- £101K/yr158K searches / yr
- 90-day growth
- -12.3%search demand this quarter
- Competition
- 58%top-5 click share · 17 brands · 22 sellers
Flapen Score
Window Pens against its category
The dotted line is the Stationery & Office Supplies average. Past it, Window Pens is stronger. Inside it, weaker.
Market
The Window Pens market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Window Pens 158K times last year and spent an estimated £101K. The top 5 brands take 71% of clicks. Demand peaks in Oct–Nov–Dec. Flapen scores it 45 out of 100, a Fail.
01 · Demand
An estimated 7.8% of those searches ended in a purchase.
Shoppers searched for this 158K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 7.8% of those searches ended in a purchase. Searches in the last 90 days moved -12.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated £101K a year.
- Searches, last 12 months
- 158K
- Growth, 90 days vs prior 90
- -12.3%
- Conversion, latest week
- 7.8%
- Market size, estimated
- £101Ka year
- Peak month
- November14.7× the quietest month
- Top search term
- window pens37K searches a year
02 · Price
A sale here is worth £8.23.
Listings sell for £8.23 on average, from £3.38 to £19.61. Amazon reports units sold in ranges. This niche sold 13K to 15K a year. The average listing sells 250 to 500 of them. At £8.23 that is £2K to £4K a year per listing.
- Average price
- £8.23under the $15 to $100 sweet spot
- Price range
- £3.38–£19.61
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 13K–15K
- Units per listing a year
- 250–500
- Revenue per listing a year
- £2K–£4K
- Returns
- 0.4%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is ads and reviews.
96% of listings pay for placement with sponsored ads. 96% ship with Prime. On an average day, 8.7% of listings are out of stock. The average listing ranks #71 within Pens, Pencils & Writing Supplies. It carries 7,112 reviews at 4.47 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 96%
- Prime listings
- 96%
- Out of stock, average day
- 8.7%
- Average rank
- #71in Pens, Pencils & Writing Supplies
- Average rating
- 4.47 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 7,112per listing
- Listings tracked
- 24
04 · Newcomers
2 of last year's 3 launches cleared the first-year sales bar.
3 products launched here in the last 12 months. 2 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 44 months on average, so the names here are settling in.
- Launched, last 12 months
- 3
- Successful launches
- 2Amazon's first-year sales bar
- Average brand age
- 44 months
Products
Top Window Pens products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 29, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
VILMA Liquid Chalk Markers Window Marker for Cars Glass pens Wet Erase Marker Washable Blackboard Pen for Car Window Mirrors Signs Crafts 2MM Tip 12 Pack 12 Colors
- Price
- £6.20
- Rating
- 4.5/5
- Reviews
- 723
- Age
- 3y ago

Thboxes Liquid Chalk Pens 12 Colours 6 mm Wipeable Markers
- Price
- £7.09
- Rating
- 4.5/5
- Reviews
- 135
- Age
- 1y ago

Liquid Chalk Pens - Dry Erase Marker Pens - Chalk Pens for Chalkboards Signs Windows Blackboard Glass Reversible Tip (8 Pack) (Multicolored 6mm)
- Price
- £7.28
- Rating
- 4.4/5
- Reviews
- 44,007
- Age
- 7y ago

STATIONERY ISLAND Chalk Pens for blackboard Liquid Chalk Markers for Chalkboard and Glass Wipeable Chalk pens for Window Drawing 10 Colours
- Price
- £6.06
- Rating
- 4.5/5
- Reviews
- 8,329
- Age
- 10y ago

STATIONERY ISLAND Chalk Pens for Blackboard Liquid Chalk Markers for Chalkboard Glass Window Drawing 3mm 8 Colours
- Price
- £5.38
- Rating
- 4.4/5
- Reviews
- 12,859
- Age
- 11y ago
Trending
estimated 90-day click momentum
Lenski Liquid Chalk Pens 10 Colour Liquid Chalk Markers Gifts for Kids 10mm Chalk Pens for Blackboards Window Glass Chalkboards Reversible Tip Girls Birthday Presents
- Price
- £11.12
- Rating
- 4.6/5
- Reviews
- 297
- Age
- 11mo ago

ARTISTRO Acrylic Paint Markers for Fabric Rock Wood Glass Craft - 24 Quick Dry Dual-Tip Fabric Paint Pens for Halloween Decorations - Pumpkin Painting Kit Art Supplies Christmas Gift
- Price
- £6.88
- Rating
- 4.5/5
- Reviews
- 7,040
- Age
- 2y ago

YITHINC Acrylic Paint Pens for Rock Painting Ceramic Metal Paper Glass Canvas Fabric Wood Porcelain Pebble Easter Decoration & Crafts Pumpkin Painting Kit Acrylic Markers for Adults(28 Colors)
- Price
- £6.26
- Rating
- 4.4/5
- Reviews
- 3,776
- Age
- 6y ago

WINSONS Chalk Pens 16 Colours Non-Toxic Eraserble Markers 6mm Round Tip
- Price
- £9.47
- Rating
- 4.5/5
- Reviews
- 310
- Age
- 1y ago

Chalkola 20 Liquid Chalk Pens for Blackboard Chalkboards Window Car
- Price
- £15.12
- Rating
- 4.5/5
- Reviews
- 4,193
- Age
- 9mo ago
Newest
by launch date
Chalkola 20 Liquid Chalk Pens for Blackboard Chalkboards Window Car
- Price
- £15.12
- Rating
- 4.5/5
- Reviews
- 4,193
- Age
- 9mo ago

Hueritfly White Liquid Chalk pens - 6 Pack Non-Toxic & Dust-Free Chalk Pens for Windows and Glass Blackboards Whiteboards Bright Colors Markers for Back to School
- Price
- £7.29
- Rating
- 4.5/5
- Reviews
- 74
- Age
- 10mo ago

Lenski Liquid Chalk Pens 10 Colour Liquid Chalk Markers Gifts for Kids 10mm Chalk Pens for Blackboards Window Glass Chalkboards Reversible Tip Girls Birthday Presents
- Price
- £11.12
- Rating
- 4.6/5
- Reviews
- 297
- Age
- 11mo ago

WINSONS Chalk Pens 16 Colours Non-Toxic Eraserble Markers 6mm Round Tip
- Price
- £9.47
- Rating
- 4.5/5
- Reviews
- 310
- Age
- 1y ago

Thboxes Liquid Chalk Pens 12 Colours 6 mm Wipeable Markers
- Price
- £7.09
- Rating
- 4.5/5
- Reviews
- 135
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 58% of clicks. Leaders hold, but buyers still shop past them.
Brands
17 falling
Sellers
22
Est. top-5 brand share
71%
Top 20: 100%
Est. top-5 click share
58%
Top 20: 97%
Open market
23%
- VILMA18%
- STATIONERY ISLAND17%
- Thboxes13%
- Chalkola13%
- Chalky Crown12%
- WINSONS6%
Demand
Window Pens search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Oct, Nov, Dec · busiest ÷ quietest = 14.7×
Search terms
Top Window Pens search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- window pens37K/yr
- glass markers8K/yr
- chalk pens for windows and glass22K/yr
- mirror pens5K/yr
- window pens for glass washable27K/yr
- window markers10K/yr
- glass pens wipeable5K/yr
- glass marker pens3K/yr
- window markers for glass washable6K/yr
- window paint pens10K/yr
Reviews and returns
What reviews say buyers love and hate about Window Pens
We read the reviews and the return reasons for every product selling here.
“Takes time to get them working”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
21 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Window Pens questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









