Online store: AliExpress
CMCP 20 шт 22 мм набор стальных проволочных щеток для полировки металла 3,0 мм хвостовик роторная щетка для Dremel роторный инструмент
3.75 USD
The item has arrived quickly and without the need of local charges paying. I have tried one of the received units, which worked very well and apparently it lasts well.