NMP-S BLOCK is used for the Mainsail Reef

Shell 100% Cotton Shell 2 100% Polyester

crew or pets from falling overboard and to protect from spray

Use the emergency handle or a cordless drill to turn the foil until the sail is reefed or furled

Breaking load: 1800kg

Harken 60mm Aluminum Element Double Block — Swivel, Becket 6270 SNAP SHACKLES NMP-S BLOCK is used forElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Elements design pairs the minimum amount of metal required to protect the sheave with a proven journal bearing. So size for size, Element is priced significantly lower, than our previously least expensive blocks. Sideplates are hardcoat anodized to resist corrosion. A tough composite bearing sheave