This "five-sided" wash brush (also referred to as "tri-level) has a yellow durastrand bristles that are flagged and softer on the ends. Considered a medium stiff bristle with the soft flag, this brush is used mainly for fleet vehicles where a more aggressive (but flagged on the ends for softness) and quicker wash process is needed.
The bristles wrap around the block to protect from bumping and damaging the vehicle's surface. This fountain/flow-thru block accepts all standard acme threaded handles.
Bristles are 2.5" in length, Block is 8" in length.