Powerlink topstays consist of an Inner Tube assembly which is screwed into an Outer Tube assembly. The length is adjusted by screwing the Inner Tube assembly further in or out of the Outer Tube assembly.
The ability of the two end connectors to rotate around several axis, is the key for the always perfect fit of Powerlink topstays.
No screws or nuts must be tightened other than the ones which secure the topstay’s ends to the oarlock pin and the boat hull.