The Barton TUPHblox Size 6 double block with a swivel head is a heavy-duty marine pulley block crafted from classic Tufnol laminate. Designed with double sheaves for multi-line control and load distribution, the rotating swivel allows the block to self-align with the direction of pull, effectively preventing line twisting and reducing friction under heavy loads.
Key Features:
Type: Double block with swivel head
Sheave Diameter: 64 mm
Max Line Diameter: 16 mm
Material: Premium Tufnol (TUPHblox) with stainless steel side straps for UV and weather resistance
Application: Ideal for multi-reeling control lines, mainsheets, and halyard systems on sailboats and traditional vessels
