Blending unrivaled expansion range, super durable aluminum protection beads, and a narrow head width, the CamalotTM X4 by Black Diamond represents the missing link to your climbing gear collection. The award winning CamalotTM X4 is the obvious choice for your next climbing adventure.. . .2 Stacked Axle Technology for enhanced expansion range. . . . Narrower head width to fit in more places. Aluminum armor beads protect cable stem without compromising flexibility. Symmetric swage and hot forged trigger bar eliminate buckling and provide ergonomic handling.