0.3 mm Tubing
Soldered Tone holes
Drawn-up Tone holes
NEL or E-mechanism
18K-3
Head joint, Body, Foot joint, and Ring = 18K Gold
Keys, Posts and Ribs= Sterling silver
18K-4
Head joint, Body, Foot joint,
Ring and Posts and Ribs= 18K Gold
Keys = Sterling silver
18K-5
ALL 18K Gold