Faux Tortoise Bridge Pins.
Created from Casein, a phosphorprotein of MILK. It become extremely hard-wearing after some treatment.
Apart from its unique look, they also produce soft and elasticity sound.
Comes in 7 pieces
Faux Tortoise Pins | 人造玳瑁止弦釘
This is a pre-order product, it will take about one week's time for delivery