I purchased this to clean between balusters on my deck railing. The description said: "Tough Lexan body lasts longer than cheap plastic." While I tried to be careful, it lasted about 15 minutes before the brush snapped off near the the connection. Maybe that is what they meant by "longer than cheap plastic."
Darrell Does Not Recommend This Product
The idea with most pressure washer accessories is to let the water pressure and the accessory do the work- pushing on brushes, extension poles, and spray wands will shorten their life considerably. However, I would still recommend reaching out to the folks at CAM spray to report the issue you had.