This is one of the larger sizes of the current Synchro range from Lewmar. It is nominally the 90mm size, although the sheave is 85mm OD, and it is made for rope diameters 12 to 14mm. Although the block has not been used, it has a couple of small 'dings' on the outer edge of the sheave, where it has been knocked against something hard; neither of these will affect its performance.
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