Brushtech Foam-Tipped Short Laboratory Glassware Brush B207C

I've got a pair of Nalgene water bottles with 1" necks. They work great if you are drinking just water, but if you pitch in a pack of Crystal Light, you will build up a layer of crap over time. This brush saved my bottles!It's hard to see in the photo, but there are normal nylon bristles along 80% of the brush, but the end is made up of a pom-pom of foam fingers. After I trimmed down the foam at bit ( so it would fit in the 1" opening of my bottles) and put a bit of a bend in the wire shaft (which holds a bend nicely) I could clean every bit of the inside of the bottles. The foam bit was dense enough that I didn't have to worry about scratching the bottom of the plastic bottle with the wire shaft of the brush.This is exactly what I needed. Thank you!

Perfect size for my hummingbird feeder - cleans sides and bottom.

Seems sturdy. I like that the tip has a sponge so that you can clean the bottom of Nalgene bottles and thermos' more easily. I've only used twice, so can't yet say how it will hold up.

I thought the foam tip would be a great idea to clean the inside bottom edges of various glassware. The foam however is too stiff to do any good & makes it harder to get the brush inside the bottles.

Little larger than I wanted, but does the job on my larger bottles.

Very useful for cleaning bottles! Great condition! Could be used in the lab too. Of corse don't use the same for lab equipmnet and the bottles you drink from.

Gets into those hard to reach water bottles. Does a good job.

Love it! Used for cleaning humming bird feeder.