sea urchin
Worth a lookShows a thin review moat (97 avg reviews), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Review moat
Incredible97.25avg incumbent reviews — the moat a new listing must climb
Avg price
Incredible$28.41avg listing price — sweet spot $15–$100
Returns
Great1.1%return rate — above 5% kills the launch gate
Quality gap
Great4.1★avg incumbent rating — lower means beatable quality
Competition
Great35%top-5 click share — an open shelf
Brand share
Good65%top-5 brand share — brands hold most of the demand
Growth
Okay+13.6%90-day search growth — must beat 0% to launch
Conversion
Okay2.5%search→purchase rate — share of searches ending in a sale
Price range
Okay$6.94–$321.69cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Bad$51K$51K/yr · 71K searches
According to Flapen's Amazon United States niche tracking, sea urchin is a $51K/yr Amazon United States market (71K searches/yr). The top 5 brands hold 65% of demand. Verdict: Worth a look — 59/100.
Data updated Jul 15, 2026 · scored weekly · How we score niches
sea urchin market data
- Units sold / yr
- 2K–2K
- avg 0–100/product
- Revenue / yr
- $43K–$57K
- units × avg price
- Conversion rate
- 2.5%
- Avg BSR
- #871
- Page quality
- 0%
- Prime
- 70%
- Sponsored
- 65%
- Out of stock
- 8.4%
- Avg brand age
- 31 months
- Avg seller age
- 185 days
Competition & brand share
Clicks spread well past the top 5 (35% combined) — an open shelf where new products get seen.Brands
25 flat
Sellers
41
Top-5 brand share
65%
Top 20: 97%
Top-5 click share
35%
Top 20: 67%
Open market
29%
- Generic24%
- Nautical Crush Trading17%
- YUHANHUWAI11%
- AZYM7%
- Worlds6%
- NmSSoRI6%
Demand & seasonality
Weekly Amazon search volume, last 81 weeks — +13.6% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.2×
Top sea urchin search terms
- sea urchin33K/yr
- sea urchin shells24K/yr
- sea urchins4K/yr
- uni sea urchin4K/yr
- sea urchin shells for air plants4K/yr
- sea urchin uni2K/yr
Top sea urchin products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
4Pcs Floating Sea Urchin Soft Lure | Tentacle Creature Lure 4.33 & 3.54 TPR Finesse Baits 5 Colors Ideal for Bass Fishing with Drop Shot Wacky Rig Neko Rig (E Large)
YUHANHUWAI$11.974.4★50 rev
4Pcs Sea Urchin Soft Bait Realistic Fuzzy Dice Fishing Lure Floating TPR Swimbait with Reflective Stars Plastic Baits for Bass Fishing Drop Shot Wacky Rig/Neko Rig & Finesse Slow Sinking (C 2.36)
Generic$6.943.8★21 rev
Worlds Assorted Natural Sea Urchins for Air Plants Craft and Decorations 12PC(1-1/4-2-1/4Inch)
Worlds$25.824.5★254 rev
6Pcs Sea Urchin Bait 6 Colors Realistic Fuzzy Dice Fishing Lure Floating TPR Swimbait with Reflective Stars for Bass Fishing Drop Shot Wacky Rig/Neko Rig & Finesse Slow Sinking (2.36)
NmSSoRI$15.364.4★4 rev
Sea Urchin - Aqua Gourmet Canned Seafood from Chilean Patagonia 3.75 Oz
Aqua Gourmet$20.012.8★13 rev
Newest
by launch date
12/24 Pcs Sea Urchin Bait for Bass Fishing Lures TPR Soft Plastic Fishing Lure Realistic Fuzzy Dice Fishing Lure with Reflective Stars for Saltwater Fishing Lures Bass Perch (Mix 12pcs 6cm/2.36)
Generic$8.921 rev
4Pcs Sea Urchin Bait Floating Urchin Baits for Bass Fishing Realistic Simulation Bass Lures with Tentacles Durable TPR Material Lure for Lake & Saltwater Fishing Wacky Rig Neko Rig (B Large)
Generic$16.3912 rev
12Pcs Sea Urchin Soft Bait Realistic Fuzzy Dice Fishing Lure Soft Artificial Sea Urchin Lures Floating TPR Swimbait with Reflective Stars for Bass & Perch (S)
Generic$9.093 rev
6Pcs Sea Urchin Bait 6 Colors Realistic Fuzzy Dice Fishing Lure Floating TPR Swimbait with Reflective Stars for Bass Fishing Drop Shot Wacky Rig/Neko Rig & Finesse Slow Sinking (2.36)
NmSSoRI$15.364 rev
Nautical Crush Trading Sea Urchin Shells -12 Assorted Urchin Shells for Crafts - Bonus White Starfish Coastal Decorations - Coastal Crafts - Beach House Decor
Nautical Crush Trading$24.806 rev
Trending
90-day click momentum
Creature Bait for Bass Fishing Soft Plastic Fishing Lures Fuzzy Dice & Sea Urchin Style Finesse Bait for Freshwater Trout & Crappie with Tackle Box
Fishora$20.624.0★
12/24 Pcs Sea Urchin Bait for Bass Fishing Lures TPR Soft Plastic Fishing Lure Realistic Fuzzy Dice Fishing Lure with Reflective Stars for Saltwater Fishing Lures Bass Perch (Mix 12pcs 6cm/2.36)
Generic$8.925.0★
6Pcs Sea Urchin Bait Realistic Fuzzy Dice Fishing Lure for Bass & Perch Floating TPR Swimbait with Reflective Stars 6 Colors Artificial Worm Bait for Saltwater & Freshwater (B 3.54in)
SLAWDER$13.963.8★
6Pcs Sea Urchin Bait 6 Colors Realistic Fuzzy Dice Fishing Lure Floating TPR Swimbait with Reflective Stars for Bass Fishing Drop Shot Wacky Rig/Neko Rig & Finesse Slow Sinking (2.36)
NmSSoRI$15.364.4★
4Pcs Floating Sea Urchin Soft Lure | Tentacle Creature Lure 4.33 & 3.54 TPR Finesse Baits 5 Colors Ideal for Bass Fishing with Drop Shot Wacky Rig Neko Rig (E Large)
YUHANHUWAI$11.974.4★
What buyers say about sea urchin
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent quality plants”
“Good price”
“Really nice size”
“it didn't break”
“A delightful snack”
“The colors are good as well”
“Very very durable material I love it Quality is all I can say”
“Great Action in the Water”
“As described”
“Hold shape very good”
What buyers complain about
“Very Small”
“they break easily”
“disappointing variety of color”
“Lack of variety”
“The item is falsely described”
“it didn't have the right texture I was looking for”
“Bottoms were not flat making it difficult to stand up straight so I had to lean them all together”
“too expensive”
“Tastes like cat food”
“The plastic is starting to get sticky”
Top return reasons
Common questions
- Is sea urchin profitable to sell on Amazon United States?
- The niche generates $51K/yr across 57 tracked products. 7 of 32 products launched in the last 360 days are still selling. 90-day search growth is +13.6%. Flapen's verdict: Worth a look (59/100).
- How competitive is the sea urchin niche?
- 25 brands and 41 sellers compete. The top 5 products take 35% of clicks and top 5 brands hold 65% of demand.
- What do buyers complain about in sea urchin?
- Top complaints mined from reviews: Size-Overall, Strength, Color. The return rate is 1.1%.
- When does demand for sea urchin peak?
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- What does it cost to enter the sea urchin niche?
- Listings span $6.94–$321.69; the average listing price is $28.41 (sweet spot $15–$100). The average incumbent carries 97 reviews — the moat a new listing must climb.