These are tuning pegs from a used Pro Martin. Two of the six pegs have different shaped knobs. I replaced them with different ones, so I'm selling these. The knobs move without any problems, and I didn't feel any difference in torque (this is just my amateur assessment). I've lightly cleaned them. Please consider them as junk. I will pack them carefully to keep the height under 3cm for shipping (see photos). #AcousticGuitarPegs #Pegs