Schaefer 37 mm 3 Series Ball Bearing Block - Swivel, 300-05

Schaefer's 3 Series blocks offer strong, high-quality metal construction built to take the punishment associated with running rigging mounted on the deck or spars. Excellent for use on small cruisers, daysailors, and high-performance racing dinghies.
 

Schaefer blocks have taken sailors around their local bay and around the world for decades. Our current offering of Aluminum and Stainless Steel blocks is perfect for dinghies to offshore maxi boats. Our sheave selection features both ball bearing, plain bearing, and now Torlon (tm) rollers with our stunning M-Series line.

• Swivel shackle allows many configuration options
• Tough hard-coat anodized aluminum cheeks
• UV-protected Delrin™ sheaves
• Schaefer blocks withstand the elements and potential mishaps far longer than other brands with standard plastic cheeks and sheaves