615659 Lewmar 30 mm Synchro Control Double Block Lewmar 29901325BK Features:
• Lightweight with unprecedented load bearing capability
• Ultimate efficiency and weight advantage
• Metal replacement technology
 

615648 Lewmar 40 mm Synchro Control Double Block Lewmar 29901425BK Features:
• Lightweight with unprecedented load bearing capability
• Ultimate efficiency and weight advantage
• Metal replacement technology
 

615335 Lewmar 50 mm HTX Double Block Lewmar 29195005 Features:
•Years of design and manufacturing experience, combined with collaboration with boat builders, designers and sailors, has resulted in the Lewmar HTX Hardware Range
 

615605 Lewmar 50 mm Synchro Double Block Lewmar 29925005BK Features:
• Synchronized movement from rope to sail
• Scientifically optimized block geometry
• Revolutionary free-spin bearing and self-aligning head
 

615347 Lewmar 60 mm HTX Double Block Lewmar 29196005 Features:
•Years of design and manufacturing experience, combined with collaboration with boat builders, designers and sailors, has resulted in the Lewmar HTX Hardware Range
 

615614 Lewmar 60 mm Synchro Double Block Lewmar 29926002BK Features:
• Sychronized movement from rope to sail
• Scientifically optimized block geometry
• Revolutionary free-spin bearing and self-aligning head
 

615615 Lewmar 60 mm Synchro Double Block Lewmar 29926005BK Features:
• Sychronized movement from rope to sail
• Scientifically optimized block geometry
• Revolutionary free-spin bearing and self-aligning head
 

615627 Lewmar 72 mm Synchro Double Block Lewmar 29927205BK Features:
• Sychronized movement from rope to sail
• Scientifically optimized block geometry
• Revolutionary free-spin bearing and self-aligning head
 

755834 Ronstan 55 mm Series 55 Ball Bearing Orbit Double Block Ronstan RF55210 Ronstan Ball Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available. This is achieved through all-composite reinforced polymer materials and a Dyneema® rope link head.  

615274 Ronstan 30 mm Series 30 Orbit Double Block Ronstan RF35212 Ronstan Series 30 Ball Bearing - Double Block
Features:
Lightweight Highest working load in its class Secure, versatile and secure attachment Low profile and compact Ultra low profile  

614287 Ronstan 20 mm Series 20 Double Block Ronstan RF20212 Features:
•Low friction
•High static and dynamic load capacity
•Lightweight
•Two way head can be fixed at 0 or 90 degrees
•Stainless steel  

602508 Ronstan 50 mm Series 50 Double Block Ronstan RF51210 Double, Becket, Universal Swivel Head (Non-Locking)
All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races  

615577 Harken 45 mm Aluminum Element Block Harken 6232 Features:
• Harken Element™ Blocks introduce side plates that combine forged aluminum and compound curves for strength
• Element's design pairs the minimum amount of  

608980 Harken 60 mm Aluminum Element Block Harken 6270 Features:
•Side plates combine forged aluminum and compound curves for strength
•Design pairs the minimum amount of metal required to protect sheave with a proven journal  

609037 Harken 80 mm Aluminum Element Double Block w/ Swivel and Becket Harken 6297 Features:
•Sideplates combine forged aluminum and compound curves for strength
•Sideplates are hardcoat-anodized to resist corrosion

•Design pairs minimum  

604861 Harken 22 mm Micro Double Block Harken 227 Micro Blocks - Double with Becket
Features:
•Compact and lightweight
•Ideal for sailboards, smaller dinghies and lightly loaded control lines on boats of all sizes
 

614630 Harken 29 mm Carbo Air Block Double Block Harken 343 29mm Carbo Air Block - Double with Swivel and Becket
Features:
•Lightweight, strong, reliable and affordable
•Safe and easy trimming
•Blocks are  

614037 Harken 40 mm Carbo Air Block Harken 2643 40mm Carbo Air Block - Double Fixed with Becket
Features:
•Lightweight, strong and affordable
•Safe and easy trimming
•Blocks are 30% lighter with a  

614032 Harken 40 mm Carbo Air Block Harken 2639 40mm Carbo Air Block - Double with Swivel and Becket
Features:
•Lightweight, strong and affordable
•Safe and easy trimming
•Blocks are 30% lighter with a  

614046 Harken 57 mm Carbo AirBlock Harken 2603 57mm Carbo Air Block - Double with Swivel and Becket
Features:
•Lightweight, strong and affordable
•Safe and easy trimming
•Blocks are 30% lighter with a  

600042 Harken 75 mm Carbo Air Block Double Block Harken 2663 75mm Carbo Air Block - Double with Swivel with Becket
Features:
•Lightweight, strong and affordable
•Safe and easy trimming
•Blocks are 30% lighter with a  

605065 Harken 76 mm Midrange Double Block Harken 1545 Midrange Blocks - Double with Becket
Features:
•Robust construction, ideal for handling high loads on medium and large offshore boats
•Fast trim and release under any  

604768 Harken 38 mm Big Bullet Double Block Harken 128 Big Bullet Block - Double with Becket
Features:
•Compact and lightweight
•Fast trim and release under high or low loads
•Blocks adapt to almost all control  

604737 Harken 29 mm Bullet Block - Double Harken 085 Features:
•The Harken 29 mm Double Bullet Block with Becket is compact and lightweight
•Fast trim and release under high or low loads
•Blocks adapt to almost all  

603175 Schaefer 7 Series Double Block Schaefer 70535 Schaefer Series 7 Blocks offer medium sized cruising and racing yachts a winning combination of strength and performance. The robust yet lightweight construction produces an exceptionally strong  

602967 Schaefer 5 Series Double Block Schaefer 50535 Schaefer 5 Series Blocks are strong, smooth and reliable. They are perfect for medium sized cruising and racing yachts and in combination with larger series blocks on bigger yachts.  

603147 Schaefer 7 Series Double Block Schaefer 70435 Schaefer Series 7 Blocks offer medium sized cruising and racing yachts a winning combination of strength and performance. The robust yet lightweight construction produces an exceptionally strong  

603195 Schaefer 7 Series Double Block Schaefer 70635 Schaefer Series 7 Blocks offer medium sized cruising and racing yachts a winning combination of strength and performance. The robust yet lightweight construction produces an exceptionally strong  

602936 Schaefer 5 Series Double Block Schaefer 50435 Schaefer 5 Series Blocks are strong, smooth and reliable. They are perfect for medium sized cruising and racing yachts and in combination with larger series blocks on bigger yachts.  

608770 Selden 60 mm Plain Bearing Block Selden 40600106 Selden Plain Bearing Blocks are typically used for heavy and static loads in halyard tuning,mainsheet systems and boom vangs Features:
•Stainless Steel straps for increased  

608817 Seldén PBB80 Plain Bearing Block Selden 40800106 Features:
•Plain bearing blocks are typically used for heavy and static loads
•Applications:
•Halyard tuning
•Mainsheet systems