7Pcs Brass Tube Brushes Bottle Brush Wire Tube Brushes, Long Wire Cleanling Brushes Tube Cleaning Lab Brushes Straw Cleaner Brush Wire Bottle Brus...

The media could not be loaded. See my attached video. On the plus side, these are obviously of very sturdy construction and I believe they will last a long time. On the negative side, they are very stiff, so are not going to go around any bends in any tubing that you use them in. Also, there is some extra length at the tip that is too long in some of them, and also that end has very sharp edges. So, you may want to trim the ends and file them smooth, and/or put some plastic or heat-shrink tubing at the very end. As a Vine reviewer, I am expected to post a review promptly after receiving the product, so of course can't comment about longevity; however, the construction looks good.

Did the job.

These arrived from the vendor packed inside a plastic zip top bag. These are great, stronger than nylon yet they dont seem to poke you or leave splinters. Sometimes you need more muscle in a tube or bend of a bottle than cotton or nylon can muster. These help give you more cleaning power. I love them and would but them again, and theyd actually make great gifts.

This is definitely a handy set of brass wire cleaning brushes to have on hand. My only complaint with this style of manufacture is that the brass wires don't extend all the way out to the tip. This prevents you from effectively cleaning the bottom surface of your tube; it only cleans the sides. On several of the brushes the manufacturer left quite a large piece of twisted steel at the tip which I cut off with some wire cutters so that the bristles would almost reach the tip.

What I really needed was a decent bottle brush, but ordered these because of the variety. I have a condenser drain on my indoor air handler that gets clogged every few years. When that happens, the water over-fills the internal drain tray and out it comes, seeping into the carpeting, etc., in the adjacent room. I'm no handy man so I essentially paid an HVAC guy to reveal the problem (I watch them work because I always learn how to fix things myself). These brushes will enable me to clean out the dust and even the calcium deposits that clog the drain pipe. Mission accomplished. Five stars, but the bristles can be very sharp so keep these stored safely away when not in use!