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Blue Crab Double Aluminium Sleeves are designed for building strong and dependable leader connections in demanding fishing applications. Their dual-channel design helps position monofilament or fluorocarbon leaders correctly before crimping, ensuring a secure and reliable connection under heavy loads. Widely used in offshore fishing, trolling, jigging and Big Game fishing, these sleeves are an excellent alternative when knots become difficult or less reliable with large-diameter leaders. Manufactured from corrosion-resistant aluminium, they provide long-lasting durability in marine environments when used with a suitable crimping tool. Choosing the correct internal diameter is essential to achieve maximum holding strength while maintaining leader integrity.
Recommended use: leader construction, offshore rigs, crimped loops and secure terminal tackle connections.

Blue Crab Double Aluminium Sleeves are designed to provide secure and dependable connections for heavy-duty fishing leaders and technical rigs. Their dual-channel construction improves leader alignment before crimping, ensuring a strong and durable connection even under high pressure. They are particularly useful when traditional knots become difficult to tie or less reliable with large-diameter monofilament and fluorocarbon leaders.
For optimal results, choose a sleeve size that matches the leader diameter and avoid fully crimping the sleeve ends to maintain a small safety flare. Supplied in packs of 25 pieces, these sleeves provide reliable performance for anglers targeting powerful saltwater species.
Compatibility:
| Material | Aluminium |
|---|---|
| Type | Double sleeve |
| Line Type | Monofilament and fluorocarbon |
| Applications | Leaders, rigs and heavy-duty connections |
| Packaging | 25 pieces |
| Fishing Styles | Offshore, trolling, jigging and Big Game |
Why use a double aluminium sleeve?
The dual-channel design improves leader positioning and provides a more stable crimp for technical fishing rigs.
How do I select the correct size?
Choose a sleeve with an internal diameter matching the leader diameter to ensure maximum holding strength and reliability.
Can these sleeves be used with fluorocarbon?
Yes, they are designed for both fluorocarbon and monofilament leaders commonly used in heavy-duty fishing.
Should the sleeve be fully crimped to the ends?
No, leaving a slight flare at both ends helps protect the leader and improves overall connection security.
No customer reviews for the moment.
| Product | Size | Width | Length | Weight | Stock | Price (tax excl.) | |
|---|---|---|---|---|---|---|---|
![]() | 1.0mm | 4,2 mm | 17,9 mm | 0.3 g | check IN STOCK | 3.96 € | |
![]() | 1.2mm | 4,6 mm | 17,9 mm | 0.3 g | check IN STOCK | 3.96 € | |
![]() | 1.5mm | 5,0 mm | 17,7 mm | 0.4 g | check IN STOCK | 3.96 € | |
![]() | 1.7mm | 6,2 mm | 17,8 mm | 0.6 g | check IN STOCK | 3.96 € | |
![]() | 2.0mm | 6,8 mm | 17,9 mm | 0.7 g | check IN STOCK | 3.96 € | |
![]() | 2.3mm | 7,5 mm | 17,9 mm | 0.7 g | check IN STOCK | 3.96 € |
Blue Crab Double Aluminium Sleeves are designed for building strong and dependable leader connections in demanding fishing applications. Their dual-channel design helps position monofilament or fluorocarbon leaders correctly before crimping, ensuring a secure and reliable connection under heavy loads. Widely used in offshore fishing, trolling, jigging and Big Game fishing, these sleeves are an excellent alternative when knots become difficult or less reliable with large-diameter leaders. Manufactured from corrosion-resistant aluminium, they provide long-lasting durability in marine environments when used with a suitable crimping tool. Choosing the correct internal diameter is essential to achieve maximum holding strength while maintaining leader integrity.
Recommended use: leader construction, offshore rigs, crimped loops and secure terminal tackle connections.