Direct From Manufacturer Ronstan Series 50 All Purpose Block – Single – Universal Head

The Series 50 All Purpose Block is an ideal solution for various applications, featuring self-lubricating Acetal polymer sheaves on stainless steel races. Its durable design ensures longevity for both cruising and racing. The Captive Lock? universal head offers flexibility in use. This block is perfect for mainsheet and halyard applications. Features: Exceptionally high working loads Low maintenance, long service life Self lubricating sheave Captive Lock? universal head Slotted pin shackle eliminates fouled lines