


Black Knight SX21 Lonfibre Reel 200M white (Badminton)
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Black Knight SX21 Lonfibre Reel 200M white (Badminton)Most durable nylon string on the market! The Black Knight SX21 Longfibre is a multi filament badminton string made of white long fibre for improved durability and a better feel. Best used in aluminum racquets with a tension of 19LBS or less, the 200M Reel allows for many stringing sessions and is ideal for players of all levels. (21 nylon gauge).
Quick Dispatch:
Your Black Knight SX21 Lonfibre Reel 200M white (Badminton) orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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★★★★★ 5
Great fit
Size: Medium, Color: White
Perfect fit and they don't slide off the back of your ankle.
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Reviewed in the United States on March 16, 2026
★★★★★ 5
Best socks!
Size: Medium, Color: Blue
I love these socks! They last for years and they fit so nicely on my feet. I love that I can wear the in tennis shoes or wool boots and they never move!
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Reviewed in the United States on October 21, 2025
★★★★★ 1
TOO SMALL
Size: Medium, Color: Blue
Nice socks, but they are way too small. Says they fit size 6 - 10. I kept 3 ( I wear size 8) and gave 3 to my daughter (size 8.5). We both agreed that they were just too small.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Style and comfort
Size: Medium, Color: Black
Exactly what I was looking for. Style and sock thickness and comfort.
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Reviewed in the United States on December 14, 2025
★★★★★ 5
Comfortable
Size: Medium, Color: Blue
So comfortable! They stay up perfectly love love love
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Reviewed in the United States on December 7, 2025