57 mm Aluminum Narrow Mastcollar ESP Block - 6 mm Clevis

ESP stands for Elegant Simple Products, which is a line of hardware that complements other existing blocks in looks, but is simpler in design and construction. Footblocks:
• Use for reef lines and genoa sheets where angle is not extreme
• Can be double stacked
• Footblock with lock off temporarily secures sheets; mounts using two screws
• Flip to install on opposite side of boat Teardrop Blocks:
• Ideal for mastbase halyard leads
• Direct attachment to padeyes/mast collar posts
• One type mounts to padeyes another to mast collar swivel posts
• Blocks do not hit deck when lines are slack