Kala U•Bass Feedback Freezer

Kala U•Bass Feedback Freezer.

Works with:
Wanderer
Exotic Mahogany
Rumbler
Striped Ebony
Flame Maple
Cedar Top Pau Ferro

Does not work with:
Nomad
Scout
Burled Ash
Spalted Maple
Zebrawood
Journeyman
Bakthi
Bamboo