swingball replacement string and ball
Worth a lookShows demand growing +276.0% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Growth
Incredible+276.0%90-day search growth — must beat 0% to launch
Quality gap
Incredible3.8★avg incumbent rating — lower means beatable quality
Returns
Incredible0.7%return rate — above 5% kills the launch gate
Review moat
Great423.29avg incumbent reviews — the moat a new listing must climb
Conversion
Good4.9%search→purchase rate — share of searches ending in a sale
Price range
Good£4.89–£27.41cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Good£12.21avg listing price — sweet spot $15–$100
Competition
Okay59%top-5 click share — leaders hold, buyers still browse
Brand share
Okay89%top-5 brand share — brands hold most of the demand
Market size
Bad£44K£44K/yr · 74K searches
According to Flapen's Amazon United Kingdom niche tracking, swingball replacement string and ball is a £44K/yr Amazon United Kingdom market (74K searches/yr). The top 5 brands hold 89% of demand. Demand peaks in Apr–May–Jun–Jul–Aug. Verdict: Worth a look — 60/100.
Data updated Jul 29, 2026 · scored weekly · How we score niches
swingball replacement string and ball market data
- Units sold / yr
- 3K–4K
- avg 100–250/product
- Revenue / yr
- £37K–£49K
- units × avg price
- Conversion rate
- 4.9%
- Avg BSR
- #208
- Page quality
- 0%
- Prime
- 76%
- Sponsored
- 71%
- Out of stock
- 7.7%
- Avg brand age
- 49 months
- Avg seller age
- 190 days
Competition & brand share
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.Brands
10 rising
Sellers
44
Top-5 brand share
89%
Top 20: 100%
Top-5 click share
59%
Top 20: 100%
Open market
8%
- Orrdiffi27%
- Swingball25%
- AICHUANG16%
- AICHUAN13%
- TIMESETL8%
- FORTRESS3%
- Open — no brand owns it (4 brands, 8%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +276.0% search growth over the last 90 days.Peak months: Apr, May, Jun, Jul, Aug · busiest ÷ quietest = 46.1×
Top swingball replacement string and ball search terms
- swingball replacement string and ball27K/yr
- swing ball replacement ball16K/yr
- swingball replacement ball17K/yr
- replacement swingball ball4K/yr
- swing ball replacement ball and string4K/yr
- swingball ball3K/yr
- swing ball replacement3K/yr
Top swingball replacement string and ball 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 17 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Orrdiffi Tennis Trainer Ball with 4M String 2 Pack Rebound Training Ball
Orrdiffi£6.013.6★100 rev
3 Pcs Tennis Trainer Ball Training replacement Balls with String Rebound Ball with Cord ideal for indoor and outdoor tennis practice with a bounce ball-durable
AICHUAN£7.193.5★427 rev
AICHUANG Tennis Ball and String Replacement for Trainer 1 Pcs Trainer Ball with String for Indoor and Outdoor Practice
AICHUANG£5.383.2★174 rev
TIMESETL 3pcs Tennis Balls with Cord Elastic Tennis Training Ball for Tennis Trainer Rebound Ball for Adult Beginners Solo Training
TIMESETL£6.443.5★164 rev
Swingball Classic Original | Red and Yellow | Outdoor Activities | Traditional Pole in the Ground Set | Real Tennis Ball and 2 Championship Bats | Suitable for Everyone 5 years+
Swingball£16.694.3★2,204 rev
Newest
by launch date
Tabanzhe 3 PCS Cord Tennis Ball Trainer Tennis Training Balls and String Replacement Set Rebound Practice Equipment Accessories for Beginner Adults Solo Training
Tabanzhe£7.794 rev
MOVEMATE 2-Pack Wilson Tennis Ball with Cord | Replacement Ball | Tennis Trainer
MOVEMATE£11.9031 rev
Thyonta String Tennis Balls 3PCS Tennis Training Balls and String Replacement for Outdoor Tennis Kids Adults Beginners Train
Thyonta£8.0332 rev
Orrdiffi Tennis Trainer Ball with 4M String 4 Pack Rebound Training Ball
Orrdiffi£8.17100 rev
Classic All Surface Swingball Set Real Tennis Ball Championship Bats All Surface Base with Integrated Carry Case for Transportation For ages 6+ to Adult Classic Outdoor Games Red and Yellow
Swingball£22.502,067 rev
Trending
90-day click momentum
AICHUANG Tennis Ball and String Replacement for Tennis Trainer 3 Pcs Tennis Trainer Ball with String ideal for indoor and outdoor tennis practice with a bounce ball-durable (3)
AICHUANG£7.943.2★
Orrdiffi Tennis Trainer Ball with 4M String 4 Pack Rebound Training Ball
Orrdiffi£8.173.6★
Orrdiffi Tennis Trainer Ball with 4M String 2 Pack Rebound Training Ball
Orrdiffi£6.013.6★
FORTRESS Reverse Cricket Swing Ball - Red/White & Pink/White Balls (Pack of 1 Pink/White)
FORTRESS£11.110.0★
Swing ball Replacement Ball and Tether
Generic£19.964.6★
What buyers say about swingball replacement string and ball
What buyers praise and complain about, mined from review topics.What buyers love
“Great fun”
“Good quality bats and ball, and it keeps both children and adults entertained for ages”
“Worth the money”
“Its a realy good value for money as it lasts ages”
“As expected”
“Great done the job saved me by the new one”
“The string is elastic”
“The bats are thick and sturdy”
“Classic outdoor game for all ages”
“lightweight”
What buyers complain about
“Broke within 2 weeks of use”
“Rubbish quality”
“what a total waste of money elastic and rubbish”
“the cap doesnt fit properly”
“the string snapped”
“Very disappointed is very flimsy”
“Expensive”
“Item arrived broken”
“still be wobbly as heck”
“The ball comes off making it invalid to use which is a shame cos my grandkids had lots of fun up till then”
Top return reasons
Common questions
- Is swingball replacement string and ball profitable to sell on Amazon United Kingdom?
- The niche generates £44K/yr across 17 tracked products. 90-day search growth is +276.0%. Flapen's verdict: Worth a look (60/100).
- How competitive is the swingball replacement string and ball niche?
- 10 brands and 44 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 89% of demand.
- What do buyers complain about in swingball replacement string and ball?
- Top complaints mined from reviews: Durability, Quality-Overall, Stretchability/Expandability/Elasticity. The return rate is 0.7%.
- When does demand for swingball replacement string and ball peak?
- Demand peaks in Apr–May–Jun–Jul–Aug; the busiest month runs 46.1× the quietest.
- What does it cost to enter the swingball replacement string and ball niche?
- Listings span £4.89–£27.41; the average listing price is £12.21 (sweet spot $15–$100). The average incumbent carries 423 reviews — the moat a new listing must climb.