Horn - Bone - Coconut shell -
Horn: soft tone, bluesy.
Bone: more resistance to wear, sound rich and powerful, the most brilliant of all dugains.
Coconut shell: offers a brighter sounding than the wood tone, a bit more wear-resistant.
The tip, carved, facilitates the up and down.
Its profile generates a sound very similar when coming back upwards.
Dugain tip is the link between you and your instrument and will reveal the depth of the sound of your guitar.