It took me some time to write this review since I had to get the Waterflow handle. I did, and had the opportunity to try out the brush this weekend, as I was prepping the house for the fall. It’s a very functional product. I used it to wash down windows and my front and back porch. The fact that the water flows though the brush really helped speed up the project. The head is sturdy and the bristles held up well to lots of scrubbing. The bristles are made of a synthetic material and i expect they will last for quite a while.