How many millimetre(mm.) of diameter for 50lbs seaguar blue label 25yards fluocarbon leader?

50 Lb Blue Label is exactly .660 mm per the label on the 25 yd spool. On the 80 Lb Blue Label the diameter is exactly .810 mm per the label on the 25 yd spool

can it be used as main line while trolling with downriger? I know it’s pricey but does it worth to do that?

I never used it as the main line or even thought of it. You're right its expensive. I catch my share of bottom dwellers jigging using it as a 8' leader connecting Seaguar 20-30# test fluorocarbon to 50# braid using the Crazy Alberto Knot (see youtube). Knot, if tied correctly has never failed/broken - the floro has. Good luck ...

how many yard come in a spool of 50lbs test

Seaguar Blue Label 50 yard Fluorocarbon Leaser spools contain 50 yards of material regardless of the pound test. Other lengths are available and price varies based on length and pound test.

Seaguar Blue Label 25 Yards Fluorocarbon Leader

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Description

🎣 Hook the big ones with the leader that pros swear by!

TRUSTED BY PROS - Invented by Seaguar, the fluorocarbon pioneer, and favored by top anglers worldwide.
VERSATILE ANGLING - Perfect for trolling, jigging, or casting plugs—one leader to rule all waters.
PRO GRADE STRENGTH - Superior tensile strength lets you land saltwater giants with confidence.
FAIL SAFE KNOT POWER - Double-structure fluorocarbon ensures your knots never fail under pressure.
INVISIBLE PRESENTATION - Smaller-test leader means your bait looks natural, fooling even the wariest fish.

Seaguar Blue Label 25 Yards Fluorocarbon Leader is a premium 100% fluorocarbon fishing line known for its exceptional knot and tensile strength, fast sinking ability, and abrasion resistance. Ideal for saltwater game fishing, it allows anglers to use smaller-test leaders for more natural bait presentations. Trusted globally by professional anglers, it’s the go-to choice for reliable, high-performance leader material.

Specifications

ASIN	B00030A2UU
Best Sellers Rank	#55,969 in Sports, Fitness & Outdoors ( See Top 100 in Sports, Fitness & Outdoors ) #12 in Fluorocarbon Line
Brand	Seaguar
Brand Name	Seaguar
Breaking Strength	2 Pounds
Colour	multicolour
Customer Reviews	4.7 out of 5 stars 5,229 Reviews
Fishing Line Type	Fluorocarbon
Global Trade Identification Number	00645879026258
Item Length	25 Yards
Item Type Name	Fluorocarbon Fishing Line Leader
Item Weight	0.02 Kilograms
Line Weight	2 pounds
Manufacturer	Kureha
Manufacturer Part Number	02FC25
Material	Fluorocarbon Leader
Material Type	Fluorocarbon Leader
Model Number	02FC25
Size	2lbs/25yds
Strand Type	Single
UPC	645879026258
Unit Count	75.0 Feet
Whats In The Box1 - Whats In The Box3	Fishing Line

Reviews

K**G

Good one

Good

17.03.2026

K**C

Great line. No worries!

Exactly as expected. Very good quality.

12.10.2025

S**E

Bella ma troppo cara

Buona lenza! Ma troppo cara….

8.05.2026

A**N

Careless Packaging

Package came empty, but we didn't realize that until our dad opened it on Christmas morning. Merry Christmas!

25.12.2017

C**S

Excellent leader line

Excellent quality, very thin, almost invisible in the water and great knot strength.

27.05.2026

N**I

Good

20.10.2025

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