These rods are sufficiently flexible to go round bends, but with enough rigidity to be used in long stacks. The solid brass joints are hexagonal to ease attachment and removal with 1/2″ BSW male and female threads. The brass joints are smooth to the 1/2″ nylon rod. All our brushes attach direct to the rod without the need for an adapter.
(Sorry we are currently out of stock on this product. New stock arriving second week of December)