Harken 75 mm Black MagicŪ Double w/Lockoff footblock Cat. No. HAR 3237 Weight 1.5 lbs
3237 75 mm Double Foot Block w/Lockoff
Black Magic® footblocks carry some of the highest loads imposed by
running rigging. The Torlon® rollers on these lightweight,
blocks are housed in a center cage, with no contact between bearings.
UV-resistant, carbon-black Delrin® balls handle sideloads.
Either metric or imperial flathead fasteners may be used for mounting
and are not exposed.
dia. - max. (in)
4 x 5/16
*Lockoffs are intended to hold
lines temporarily and should not be used in place of line stoppers or