Welcome to Defender Canada! 
Single Blocks
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19% offRonstan Series 20 Ball Bearing Block - 20 mm (3/4") - RF25109
$17.66 -
19% offRonstan Series 20 Block - 20 mm (3/4") - RF20101HL
$31.76 -
19% offRonstan Series 20 Block - 20 mm (3/4") - RF20111
$19.24 -
19% offRonstan Series 20 Block - 20 mm (3/4") - RF20184
$23.89 -
19% offRonstan Series 20 Stand-Up Block - 20 mm (3/4") - RF20141
$25.89 -
19% offRonstan Series 40 Block - 40 mm (1 9/16") - RF41110
$37.88 -
19% off
Ronstan Series 50 Block - 50 mm (2") - RF51110
$61.78 -
19% offRonstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15141
$23.23 -
Schaefer 5 Series Block - 504-15
$150.04 -
Barton Double Tang Single Block
$19.25 - $51.82 -
Barton Size 2 Wooden Single Block
$198.36 - $227.33 -
Barton High Load Wire Rope Block
$76.87 - $82.77 -
Barton Aluminum Fixed Eye Wire Rope Block
$113.51 - $120.50 -
Barton Size 1 Ball Bearing Single Block
$25.27 - $39.40 -
Barton Size 4/5 Ball Bearing Single Block
$51.09 - $184.67 -
Lewmar HTX Stand-Up Block - 72 mm (2 13/16") - 29197211
$338.98 -
Harken T2 Soft-Attach Ratchamatic Block - 40 mm (1 9/16") - 2159
$106.28 -
Harken Aluminum Element Block - 60 mm (2 3/8") - 6277
$311.01 -
Harken Carbo Air Block - 75 mm (2 15/16") - 2661
$161.27 -
19% offRonstan Series 30 Ball Bearing Single Block with Swivel Shackle - RF30100
$36.55 -
19% offRonstan Series 25 Single Utility Block with Swivel Fork Shackle - RF573
$24.60 -
Harken 90 deg. Carbo Block - 40 mm (1 9/16") - 2659
$61.16 -
Harken 90 deg. Carbo Block - 29 mm (1 1/8") - 352
$34.37 -
Harken Narrow Ferrule Head Block - 16 mm (5/8") - 467
$30.14 -
59% offAllen Brothers Single Block with Ingerfield Clip - Laser Traveler - 29 mm (1 1/16") - A.178-74
$3.07 -
72% offAllen Brothers Single Block - Mid Boom - 38 mm (1 1/2") - A.278
$2.92 -
57% offAllen Brothers Plain Block - Rear Boom - 38 mm (1 1/2") - A.378
$6.24 -
Barton Size 7 Plain Sheave Single Toggle Head Bearing Block - N07090
$64.71 -
Lewmar Synchro Control Stand-Up Block - 30 mm (1 3/16") - 29901320BK
$31.60 -
Lewmar Single Block - 60 mm (2 3/8") - 29901665BK
$144.40 -
19% offRonstan Series 30 Orbit Block - 30 mm (1 3/16") - RF35100A
$37.88 -
19% offRonstan Series 30 Orbit Block - 30 mm (1 3/16") - RF35100D
$43.83 -
19% offRonstan Series 30 Orbit Block - 30 mm (1 3/16") - RF35101D
$36.84 -
19% offRonstan Series 30 Orbit Stand-Up Block - 30 mm (1 3/16") - RF35140
$35.21 -
19% offRonstan Series 40 Block - 40 mm (1 9/16") - RF41111
$35.21 -
19% offRonstan Series 60 Core Block - 60 mm (2 3/8") - RF64110
$170.73 -
19% offRonstan Series 75 Core Mast Base Block - 75 mm (3") - RF74108A
$120.41 -
19% offRonstan Series 75 Core Stand-Up Block - 75 mm (3") - RF74140
$277.45 -
19% offRonstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15100
$26.19 -
19% offRonstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15101
$15.39 -
19% offRonstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15111
$17.88 -
19% offRonstan Series 60 AP Block - RF66100
$60.96 -
Schaefer 3 Series Block - 303-05
$133.12 -
Schaefer 3 Series Block - 03-03
$106.33 -
19% offSchaefer 3 Series Stand-Up Swivel Block - 300-62
$172.04 -
Barton Size 3 Wooden Single Block
$222.80 - $268.29 -
Barton Size 2 Ball Bearing Single Block
$28.95 - $125.17 -
Barton Size 6 Ball Bearing Single Block
$64.19 - $212.20