Lewmar double block bkack t/3

Lewmar High Performance Control Pulleys are extremely light and have an unprecedented load capacity. The weight advantages come from a combination between Metal Substitution Technology (MRT in English) and the central track and stainless steel balls. Long Fiber Technology provides exceptional hardness and durability. In addition, the open design makes it easy to clean sand or salt, which makes maintenance simple and all operation much smoother.
Light weight.
Very high resistance
Impact resistant.
Reduced friction
Easy maintenance.
Optimized for hand controlled ends.