The Harmony Tri-Wing-Nut Knob is the replacement knob for seats and foot pegs on Dagger kayaks. These are typically used on the Dagger Mamba, Axiom and Nomad. If your Dagger boat has the old yellow knob, this will not fit.
Not the right part for me. These new Tri-Wing nuts are smaller than the older ones. Part is good quality though.