Welcome to Defender Canada! 
Double Blocks
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Ronstan Series 20 Double Block - 20 mm (3/4") - RF20202
$44.67 -
Barton Size 7 Double Block
$99.97 - $109.39 -
Ronstan Series 50 Block - 50 mm (2") - RF51200
$103.37 -
Barton Size 3 Double Block
$36.33 - $62.94 -
Barton Size 2 Ball Bearing Double Block
$45.29 - $64.28 -
Barton Size 3 Ball Bearing Double Block
$53.27 - $76.02 -
Barton Size 7 Ball Bearing Double Block
$137.15 - $147.26 -
Ronstan Series 30 Orbit Double Block - 30 mm (1 3/16") - RF35202
$54.11 -
Ronstan Series 30 Orbit Double Block - 30 mm (1 3/16") - RF35212
$57.26 -
Ronstan Series 50 Double Block - 50 mm (2") - RF51210
$128.07 -
Ronstan Series 55 Ball Bearing Orbit Double Block - 55 mm (2 5/32") - RF55210
$140.33 -
Ronstan Series 20 Double Block - 20 mm (3/4") - RF20212
$49.39 -
Barton Size 1 Double Block
$25.27 - $50.19 -
Barton Size 4/5 Double Block
$59.78 - $93.84 -
Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15202
$34.91 -
Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15212
$38.59 -
Barton Size 1 Wooden Double Block
$159.95 - $204.45 -
Barton Size 2 Wooden Double Block
$210.47 - $255.36 -
Barton Size 3 Wooden Double Block
$246.27 - $320.22 -
Barton Size 0 Double Block
$27.86 - $49.02 -
Barton Size 2 Double Block
$29.49 - $57.21 -
Barton Size 6 Double Block
$84.84 - $89.62 -
Barton Size 0 Ball Bearing Double Block
$38.27 - $55.10 -
Barton Size 1 Ball Bearing Double Block
$40.33 - $60.20 -
Barton Size 4/5 Ball Bearing Double Block
$76.07 - $99.13 -
Barton Size 6 Ball Bearing Double Block
$110.79 - $115.44