What Are They Using?

[ebuzzcut]

In the Lot Video of Carolina Crown on the homepage of Vicfirth.com, does anyone know what the brush things that the snares are using at the beginning are?
Thanks.

[vicfirthrules10]

the first guy to play is definitely using dreadlocks, but some others look like they're using the rock rakes. just go to the brushes/rute page under products.