National 12 1:1 4mm main halyard Style_Toiletry bag Sheave size: 57 mm (2-1/4")

Sheave size: 57 mm (2-1/4")

Width - 135mm (5 5/16")

This block also comes with a strengthened vang key

with an ergonomic contoured shape for the best fit and comfort

as well as 316 grade stainless steel ultra snap technology means you can lash without fear of line abrasion

National 12 1:1 4mm main halyard Style_Toiletry bag Sheave size: 57 mm (2-1/4")Evolution Race 78 has a high performance Dyneema SK78 12 strand coated core that is high strength, low stretch and low creep. It has a hard wearing HT braided polyester cover and is perfect for use on National 12's, providing the low stretch required for high performance racing, as well as polyester cover to protect the core against harmful UV. National 12 systems are automatically discounted as part of our sponsorship of their National Series, and