The ELLERsafe LAC is equipped with a rope adjuster, this is the separate aluminium part. Not a replacement part.
It is tested to work well with 10-11mm ropes. it has good grip and holding power, with the rope easily adjustable.

The adjuster fits ropes 8-12.5 mm, on the lower end it might slip, on the higher end it will be a harder pull to get the rope through.

Weights about 58gr, holds 150kg (depending on rope).

Works best with a carabiner with round profile. The ELLERsafe ELLIPSE and ARC have been found to work the best. Always test before using.

The release hole fits a 4mm rope easily.

Not certified on its own, no EN, no CE, use on your own risk. The LAC lanyards are certified and tested.