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Fits inside boom to provide support and strength
Step 1 - Choose your Control Line option:
Keeps you comfortable and warm
3mm Supratex seat for durability
HARKEN MAINSHEET BOOM BLOCK SET cunningham Fits inside boom to provideThis ILCA Laser Harken Mainsheet Boom Block set includes all the blocks you need to upgrade your mainsheet system to top of the line ILCA class legal Harken ball bearing blocks. This is a must have if you're racing and is compatible with all years and rig styles. Includes: Forward Mainsheet Harken Ball Bearing Boom Block Rear Mainsheet Harken Ball Bearing Boom Block with Becket Double Traveler Harken Ball Bearing Block
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