Harken 60mm Single Element Block Mastbase w/Swivel [6220] Boat Outfitting | Accessories We also like being oil-free

We also like being oil-free and environmentally conscious

Lock Hole:1/4"

200 kHz-11°

This kit includes (2) exclusive Rupp single pulley halyard line locks with shock cords

Low profle makes it easy to install in tight spaces

Harken 60mm Single Element Block Mastbase w/Swivel [6220] Boat Outfitting | Accessories We also like being oil-free60mm Single Element Block Mastbase with Swivel Element 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