Review on Amazer Bottle Brush Cleaner Set - Long Handle Water Bottles Cleaner Brushes, Flexible Cup Scrubber & Round Bottle Scrub Brush - 2-Pack Bottle Cleaning Brush Set by Stephanie Lum

For the price they're pretty decent. A few things that could be better: First, the blue bristles aren't stiffer than the white ones. In general, the bristles are fairly soft and not suitable for serious brushing. Second, the shaft is too flexible, making it difficult to apply the necessary pressure to get those soft bristles to do their job. And the last thing - the handle should have stubborn ribs along its entire length, and not just halfway. Still slippery when you have to climb into a tall bottle and just hold on to the handle end.