You’re heading in. Choose your weapon:

The black one with grooves.
The solid black one.
The canary-colored one.
The faded black with silver markings.
The fire red with orange stripes.
The flat, mat black one.
The marbled red-yellow-orange-brown one.
The rusty black and brown in the center.
The shiny, newer black one near the bottom brush.
The flat pearl with round rivets.
The bright yellow on the bottom row.
The deep red with the brighter end.

The razor strop: Table of Contents/Traditional View
The top brush:  Contributor Notes