The 'halyard slider' has been specifically planned for wire halyards and for those halyards which are subject to such high strain as to preclude use of a stopper. This solution permits easy adjustment and secure locking of halyards.
The complete system includes Hard black aluminium 'T' track automatic version, with fixed length and with numbered positions of the slider, positioning holes spacing = 50 mm, fixing screws spacing = 100 mm. The halyard slider with the 2-positions stop-pin: locked and automatic insertion. 2 simple aluminium end fittings for 'T' track.