28mm Treble Ball Race Block 

SeaSure have been producing some of the worlds most reliable control line blocks for more than 25 years.
This latest development with carbon fibre cheeks make them super hard wearing if a miss-lead occurs.
• Light weight, high load carrying capacity blocks.
• Reliable race proven designs.
• High wear resistant cheek material extends life if
miss-lead occurs.
• Freewheeling for fast line take up.
Rope Sizes & Types: 6mm & 8mm, Dyneema,
Spectra or Kevlar; 3 strand or
plaited nylon, polyester and
polypropylene ropes.
Sheave: Self lubricating graphite
loaded POM.
Bearing: Stainless steel balls with
carbon fibre hub and cage.
Body construction: Carbon fibre with 316
stainless steel strap.
Weights: 13g (19-74); 118g (28-82).
Typical uses: Control lines, halyards,
outhauls, kicking straps,
furling lines, cunninghams,
traveller control lines, leech
lines spinnaker sheets, guys
and halyards.