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Derlin ball bearings are UV stabilized with carbon black for maximum protection and stainless steel sideplates add strength
Commonly 75mm blocks are for the main and spinnakers on larger FJs
The Velcro® strap is permanently attached to one side plate and holds the block securely closed when side plates are aligned even under the highest loads
They stand up to the rigors of ocean racing but will serve you well wherever you sail
The Forkhead Block is often used on Cunningham and outhaul systems on Laser Class dinghies
HARKEN 29mm Double Bullet Block, 084 Complementary Hardware_Soft Attachments Derlin ball bearings are UVLow friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications. Wire Bullet blocks use roller bearings to carry higher loads and features hard lube anodized aluminum sheaves for strength and corrosion resistance. Mast exit blocks with cams are used for halyard controls and under boom mainsheets.
