Shopping from Canada? 
Go to Defender Canada!
Single Blocks
-
Ronstan Series 30 Orbit Block - 30 mm (1 3/16") - RF35100A
$33.05 -
Ronstan Series 30 Orbit Block - 30 mm (1 3/16") - RF35100D
$38.33 -
Ronstan Series 30 Orbit Stand-Up Block - 30 mm (1 3/16") - RF35140
$30.69 -
Ronstan Series 40 Block - 40 mm (1 9/16") - RF41111
$30.69 -
Ronstan Series 50 Block - 50 mm (2") - RF51101
$34.24 -
Lewmar SC Single Ratchet Block - 60 mm (2 3/8") - 29901661BK
$92.99 -
Lewmar Single Block - 60 mm (2 3/8") - 29901665BK
$101.99 -
Ronstan Series 75 Core Mast Base Block - 75 mm (3") - RF74108A
$106.21 -
Ronstan Series 75 Core Stand-Up Block - 75 mm (3") - RF74140
$245.44 -
Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15141
$20.06 -
Ronstan Series 60 AP Block - RF66100
$53.51 -
Lewmar HTX Web Block - 60 mm (2 3/8") - 29196047
$81.99 -
Lewmar Control Single Block with Sheave - 40 mm (1 9/16") - 29901401BK
$27.99 -
Lewmar Racing Single Stand Up Block - 60 mm (2 3/8") - 29901600BK
$297.99 -
Lewmar High Load Racing Single Block
$438.99 - $703.99 -
Ronstan Series 40 Ball Bearing Single Block - RF40100
$32.46 -
Ronstan Series 30 Single Utility Block with Loop Head & Becket - RF681
$19.09 -
Ronstan Series 20 Block - 20 mm (3/4") - RF20101HL
$27.62 -
Ronstan Series 30 Orbit Block - 30 mm (1 3/16") - RF35109HL
$107.06 -
Ronstan Series 50 Block - 50 mm (2") - RF51110
$54.24 -
Ronstan Series 50 Block - 50 mm (2") - RF51111
$50.57 -
Lewmar HTX Toggle Block - 72 mm (2 7/8") - 29197221
$120.99 -
Ronstan Series 55 Ratchet Orbit Block - 55 mm (2 5/32") - RF56130
$173.74 -
Ronstan Series 60 Core Block - 60 mm (2 3/8") - RF64130
$249.01 -
Ronstan Series 60 Core Block - 60 mm (2 3/8") - RF64100AW
$168.68 -
Ronstan Series 60 Core Block - 60 mm (2 3/8") - RF64108AW
$188.94 -
Ronstan Series 60 Core Halyard Block - 60 mm (2 3/8") - RF64108
$107.10 -
Ronstan Series 60 Core Mast Base Block - 60 mm (2 3/8") - RF64108A
$88.36 -
Ronstan Series 60 Core Stand-Up Block - 60 mm (2 3/8") - RF64140
$195.46 -
Ronstan Series 75 Core Block - 75 mm (3") - RF74100AW
$249.01 -
Ronstan Series 75 Core Block - 75 mm (3") - RF74110
$186.53 -
Ronstan Series 75 Core Halyard Block - 75 mm (3") - RF74108
$124.06 -
Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15180
$26.56 -
Lewmar HTX Block - 60 mm (2 3/8") - 27196001
$351.99 -
Lewmar HTX Upstand Block - 50 mm (2") - 29195011
$134.99 -
Lewmar HTX Web Block - 50 mm (2") - 29195047
$71.99 -
Lewmar HTX Upstand Block - 60 mm (2 3/8") - 29196011
$143.99 -
Lewmar HTX Web Block - 72 mm (2 13/16") - 29197247
$131.99 -
Lewmar Control Single Web Block - 30 mm (1 3/16") - 29901447BK
$28.99 -
Lewmar Racing Block Single - 60 mm (2 3/8") - 29901611BK
$160.99 -
Lewmar Web Block - 60 mm (2 3/8") - 29901647
$245.99 -
Lewmar Control Block - 60 mm (2 3/8") - 29901651BK
$53.99 -
Lewmar Control Block with Ratchet and Cleat - 60 mm (2 3/8") - 29901667BK
$190.99 -
Lewmar Racing Single Block - 80 mm (3 1/8") - 29901811BK
$177.99 -
Lewmar Racing Single Block with Ratchet - 80 mm (3 1/8") - 29901821BK
$215.99 -
Lewmar Racing Ratchet Block with Swivel, Becket and Cam Cleat - 80 mm (3 1/8") - 29901829
$381.99 -
Lewmar Synchro Block - 105 mm (4 1/8") - 29921051BK
$632.99 -
Lewmar High Load Racing Fixed Halyard Block - 105 mm (4 1/8") - 29902100
$719.99