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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. 45mm Black Magic block
    SKU: HK3391
    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
    €204.95 €204.95
    Harken
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  3. 45mm Black Magic double loop block
    SKU: HK3390
    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
    €319.95 €319.95
    Harken
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  4. 45mm Black Magic loop block
    SKU: HK3389
    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
    €201.95 €201.95
    Harken
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  5. 57mm Block Single Loop (loop not included
    SKU: HK3214
    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
    €261.95 €261.95
    Harken
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  6. 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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  7. 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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  8. 75mm Block Single Loop (loop not included
    SKU: HK3230
    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
    €473.95 €473.95
    Harken
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  9. 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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  10. 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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  11. Series 40 Ball Bearing Orbit Block Single RF45101
    SKU: RF45101
    Ultra LightWeight . Low friction 2-stage Orbital ball bearing system. Highest working load in its class. Low profile and compact. High performance cleating. Easily fitted and securely retained Dyneema® Link head Learn More
    €34.50 €34.50
    Ronstan
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  12. Series 40 Ball Bearing Orbit Block Single, becket RF45111
    SKU: RF45111
    Ultra low profile becket
    Easily fitted and securely retained Dyneema® Link head     Learn More
    €38.25 €38.25
    Ronstan
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  13. Series 40 BB Orbit Block, Single,Bkt,Cleat,SwivelHead RF45130
    SKU: RF45130
    Single, Becket, Cleat, Swivel Head* Learn More
    €93.99 €93.99
    Ronstan
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  14. Series 40 Ball Bearing Orbit Block Double RF45201
    SKU: RF45201
    Single inner cheeks for minimum Weight & size. Easily fitted and securely retained Dyneema® Link head Learn More
    €72.49 €72.49
    Ronstan
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  15. Series 40 Ratchet Orbit Block Single, Auto
    SKU: RF46101
    Now you can enjoy the flexibility of setting up your fitout exactly to suit yourself. Ronstan is the only company that offers a 40mm ratchet block with both auto and manual engagement models* Learn More
    €70.99 €70.99
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  16. Series 40 Ratchet Orbit Block Single, Manual
    SKU: RF46102
    Manual modes allow the ratchet mechanism to be switched on or off as required. This is the preferred mainsheet set-up for many top sailors. Learn More
    €75.99 €75.99
    Ronstan
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Now Shopping by
  1. Block type
    Wire block
  2. Block type
    Loop
  3. Block type
    Becket
  4. Series
    Series 40 Orbit
  5. Series
    Black Magic
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Brands
  1. Harken 10 items
  2. Ronstan 6 items
Block type
  1. Becket 6 items
  2. Cheek 6 items
  3. Stand-up 3 items
  4. Fiddle 2 items
  5. Fiddle / becket 2 items
  6. Loop 10 items
  7. Wire block 0 items
Series
  1. 16 mm 3 items
  2. Ball Bearing Block 26 items
  3. Black Magic 10 items
  4. Carbo 52 items
  5. Element 13 items
  6. Micro 5 items
  7. Midrange 1 item
  8. Plain bearing block 19 items
  9. Series 19 2 items
  10. Series 20 4 items
  11. Series 25 - 30 3 items
  12. Series 30 Orbit 5 items
  13. Series 40 2 items
  14. Series 40 Orbit 6 items
  15. Series 50 2 items
  16. Series 55 Orbit 5 items
  17. Series 60 Core 2 items
  18. Series 75 Core 1 item
  19. Wire block 12 items
  20. Zircon 2 items
Model
  1. 45 mm 4 items
  2. 57 mm 3 items
  3. 75 mm 3 items
Bearing
  1. Ball bearing 6 items
  2. Needle bearing 10 items
Sheaves Ø
  1. 45 mm 4 items
Cam
  1. Yes 1 item
  2. No 15 items
Swivel
  1. Yes 6 items
  2. No 10 items
Ratchet
  1. Yes 2 items
  2. No 14 items
Max rope diameter
  1. 9 mm 6 items
  2. 10 mm 4 items
  3. 12 mm 3 items
  4. 14 mm 3 items
Number of sheaves
  1. 1 12 items
  2. 2 4 items
Breaking strength (kg)
  1. < 1500 10 items
  2. 1500 - 3000 2 items
  3. 3000 - 4500 1 item
  4. 4500 - 6000 3 items
Safe Working Load (kg)
  1. < 1500 12 items
  2. 1500 - 3000 4 items
Price
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