The Old Pine Knot Bridge is a rare erhu bridge crafted from the knot sections of old pine trees that have endured years of wind and snow. The density of the knots and the tightness of the annual rings give the sound a unique depth and richness, creating a resonance that seems to speak. This bridge is carved from the stately old pine wood. The tone is deep, soft, and the lingering sound exudes elegance. If you are particular about your sound, please give it a try. Size: 15mm x 12mm x 9mm There are slight individual differences due to handcrafting. Thank you for viewing.