Ronstan Series 50 All Purpose Block - Double - RF51200

Ronstan Series 50 All Purpose Block - Double - RF51200

Marsoni

M251S

$58.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Ronstan Series 50 All Purpose Block - Double - RF51200Ronstan Series 50 All Purpose Double Block RF51200 The Ronstan Series 50 All Purpose Double Block (RF51200) is a strong, lightweight, and versatile pulley designed for high load sail control systems on cruising and performance sailboats. Built to handle demanding applications, this double block delivers smooth, efficient line handling with minimal friction. Featuring two 50mm sheaves, the RF51200 is ideal for use in mainsheets, vang systems, traveler

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We offer a 30-day return/exchange service after receiving.
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I'm very pleased with these shoes. I rarely write reviews, but these are extremely comfortable and stylish. I bought a black pair and a brown paid. Many times I have to get a wide, but the standard size 12 fits me well. Easy to slip into, yet still snug while walking. I feel like the price is reasonable too. Good cushioning, not too thin of a sole.

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Reviewed in the United States on January 7, 2026