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  1. 45mm Black Magic block with becket
    SKU: HK3392
    Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems.  Learn More
    €267.95 €267.95
    Harken
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  2. 16mm Airblock with becket
    SKU: HK405
    The 16 mm is Harken's smallest racing block. It is perfect for small control lines (up to 5mm ) found on small sailboats and boats up to 30 foot. The bearing system uses stainless steel balls and has a 113 kg maximum working load, a breaking load of 544 kg and it weights just 12 gram. Learn More
    €20.25 €20.25
    Harken
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  3. 16mm Airblock double with becket
    SKU: HK407
    The 16 mm is Harken's smallest racing block. It is perfect for small control lines (up to 5mm ) found on small sailboats and boats up to 30 foot. The bearing system uses stainless steel balls and has a 204 kg maximum working load, a breaking load of 544 kg and it weights just 28 gram. Learn More
    €40.00 €40.00
    Harken
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  4. 16mm Airblock triple with becket
    SKU: HK409
    The 16 mm is Harken's smallest racing block. It is perfect for small control lines (up to 5mm ) found on small sailboats and boats up to 30 foot. The bearing system uses stainless steel balls and has a 318 kg maximum working load, a breaking load of 544 kg and it weights just 43 gram. Learn More
    €54.49 €54.49
    Harken
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  5. 57mm Block Double / Becket Swivel
    SKU: HK3218
    Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. Learn More
    €471.95 €471.95
    Harken
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  6. 57mm Block single / low-load / becket swivel
    SKU: HK3229
    Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. Learn More
    €263.95 €263.95
    Harken
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  7. 75mm Block Single/Swivel/Becket
    SKU: HK3232
    Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. Learn More
    €569.95 €569.95
    Harken
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  8. 75mm Air Runner Block Single/Becket
    SKU: HK3239
    Runners are used on running backstays of offshore boats to adjust mast bend for different wind conditions.  Learn More
    €659.95 €659.95
    Harken
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  9. Series 29 Single Becket Block
    SKU: RF188
    Single, becket, tube rivet head Learn More
    €22.65 €22.65
    Ronstan
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  10. Series 29 Vee Jam Block Single
    SKU: RF341
    Allows fast, sure cleating of control lines. Learn More
    €44.00 €44.00
    Ronstan
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  11. Series 40 BB Block, Single, Becket RF40110
    SKU: RF40110
    Captive Lock™ universal head. Slotted pin shackle eliminates fouled lines. Snap fit removable becket pin Learn More
    €35.75 €35.75
    Ronstan
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  12. Series 40 AP Block, Single Becket RF41110
    SKU: RF41110
    Captive Lock™ universal head
    Slotted pin shackle eliminates fouled lines
    Snap fit removable becket pin
     Learn More
    €35.00 €35.00
    Ronstan
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  13. Series 29 Double Block, Loop Top & Becket RF83
    SKU: RF83
    Double, becket, loop head. APPLICATIONS
    Vang, cunningham and trapeze retriever systems on dinghies
    Leech line tackles, bunk adjusters etc on larger yachts     Learn More
    €36.75 €36.75
    Ronstan
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Now Shopping by
  1. Brands
    Harken
  2. Brands
    Ronstan
  3. Block type
    Becket
  4. Series
    Series 70 Orbit
  5. Series
    Series 40
  6. Series
    Black Magic
  7. Series
    16 mm
  8. Series
    Series 25 - 30
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Brands
  1. Harken 8 items
  2. Ronstan 5 items
Block type
  1. Becket 13 items
  2. Cheek 6 items
  3. Exit block 2 items
  4. Stand-up 6 items
  5. Fiddle 4 items
  6. Fiddle / becket 2 items
  7. Loop 5 items
Series
  1. 16 mm 3 items
  2. Black Magic 5 items
  3. Carbo 37 items
  4. Element 13 items
  5. Micro 5 items
  6. Midrange 1 item
  7. Series 20 4 items
  8. Series 25 - 30 3 items
  9. Series 30 Orbit 3 items
  10. Series 40 2 items
  11. Series 40 Orbit 1 item
  12. Series 50 2 items
  13. Series 60 Core 2 items
  14. Series 70 Orbit 0 items
  15. Series 75 Core 1 item
  16. Zircon 2 items
Model
  1. 45 mm 1 item
  2. 57 mm 2 items
  3. 75 mm 2 items
Bearing
  1. Ball bearing 3 items
  2. Plain bearing 2 items
  3. Needle bearing 5 items
  4. No bearing 3 items
Sheaves Ø
  1. 45 mm 1 item
Cam
  1. Yes 1 item
  2. No 12 items
Swivel
  1. Yes 6 items
  2. No 7 items
Max rope diameter
  1. 5 mm 4 items
  2. 8 mm 2 items
  3. 10 mm 3 items
  4. 12 mm 2 items
  5. 14 mm 2 items
Number of sheaves
  1. 1 9 items
  2. 2 3 items
  3. 3 1 item
Breaking strength (kg)
  1. < 1500 9 items
  2. 1500 - 3000 1 item
  3. 3000 - 4500 1 item
  4. 4500 - 6000 2 items
Safe Working Load (kg)
  1. < 1500 10 items
  2. 1500 - 3000 3 items
Price
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