These clips are precision CNC Machined from billet TI-6Al-4V Alloy. Half the weight of stock clips and Titanium does not corrode like the steel clips.
Tolerances are tighter (+/- .003") than the stamped steel clips and grip on tight - they will not fling off. Even on older kinked chains, these clips stay put due to better fitment and the spring properties of Titanium.