Bois d'Harmonie is a French firm that manufacture high quality wooden accessories for string instruments. The Bois d'Harmonie spike is one of our favorites...
Wooden knob and a carbon spike , mounted with a Wolfram point which is very hard and always sharp.
A nice spike that really helps to develope the sound.
Cone diameter: 25 mm
Knob material: Ebony, boxwood or rosewood.
Diameter: 10 mm.
Length: 61 cm.