All Timbre Line instruments have several design and construction features which are included to enhance the sound and durability of our instruments. Laminated maple pinblocks are used to insure tight tuning pins for the longest possible duration. We use only solid tone woods for soundboards and bases to provide the finest sound. We use maple for its strength and simple good looks. All these solid woods are hand selected for beauty and acoustic properties. Plywood, used by many builders, is not a material designed to resonate. We provide tuning wrenches designed to be used with the hand over the shaft to prevent pin hole widening. We use graduated string diameters on all our instruments to give each string the best vibrating tension. Check the features, you'll buy Timbre Line.