A limited-edition set from Koyudo. Also available in gold. View the whole Koyudo Raden Series. 

In Japanese, the kanji ra (螺) means shell and den (鈿) means inlaid. Raden is a traditional decorative technique of inlaying thin layers of luminous shells. The intricate cherry blossom design glimmers in the light. Bristles are made with high-grade Kolinsky hair, giving them an exceptional standard of soft, silky luxury. 

Details 

Brush length: 137mm
Bristle length: 6.5mm 
Bristle width: 4mm 
Bristle material: Kolinsky