Nakata Kizo 100-bristles Chasen (Made in Korea)

Chasen is a hand-made tool made of bamboo that is used to whisk usucha (light tea w/ bubbles) / koicha (thick tea w/o bubles).

For ones knowing the bubble whisking, 80 bristles with stronger strokes is recommended for better durability.
Famous Japanese chasen shop Nakata Kizo passes traditional techniques and experience, and uses best bamboos from Nara, Japan to produce this hand-made chasen in a Korean workshop at a more reasonable price. 
A chasen stand is highly-recommended to keep chasen shape in place for better whisking.