Timber Tones TTBR4 Burmese Rosewood Pack of Four Guitar Picks Designed around the classic 351 shape 2.5mm thick, chamfering down to 0.7mm at the playing tip CNC milled to precise tolerances from the very best quality exotic timbers Burmese Rosewood is on the cusp between an electric guitar and acoustic guitar use Warm mellow tones can be achieved on an electric guitar however the relative hardness of Burmese Rosewood is likely to slightly brighten the tones of most acoustic guitars