Designed by the "Wizard of Iron" Denny Moorhouse the designer of the origional figure 8 descender back in 1968. Manufactured in Wales at International Safety Components (formerly the old "Clog" factory). Forged designed for strength and durability. Rescue 8 has "Ears" to aid in "locking off". Hard cote anodized finish. Figure 8 descender will accommodate 10-16mm ropes. Weight: 7oz/196g. Strength: 7875 lbf(35kN).