Shock absorbing sling designed to limit peak loads in any climbing situation. When the Screamer activates, the action of the stitch ripping produces a loud tearing sound, indicating the system has reached the activation point of the Screamer(>2 kN).

Zipper screamers are designed for long falls with high fall factors and can effectively reduce peak loads by 6-8kN. The first few placements when ice climbing is one place a zipper is particularly effective.

See this page on Yates' website for detailed examples of how screamers can reduce the load to runners and anchors.

Activation >2kN. Reduction in system peak loading 4-8kN. Runner strength 26kN