... shaving brush and has been proved by Guinness World Record on 20 July 2007, the size is as follow: Total height: 26.5cm ... weight: 0.5kg. Knot diameter: 6.5cm. It was made by 30,000 choice badger hairs. You know one badger only ... of hair, this means that we need 10,000 badgers to finish this shaving brush, so it is the unique in the world which has a ...