Blue Line thimbles are very popular for use on winch lines, especially for high-performance Ultra High Molecular Weight Polyethylene (UHMWPE Spectra) ropes like Ultrex
! The thimble has a tubular design that encompasses much of the rope and helps to maintain a proper D/d ratio. This means the rope will bend in the proper radius, even under load. The design of this thimble features a gusset which only further enhances its strength.