Good product for water bottles with larger mouth openings. Only criticism is that it doesn’t fit into bottles that have smaller mouth openings.

Works well for bottles and cups. Not very long, so can be challenging find for really tall bottles. I have a different prism for that. But I like using this one for the rest of my stuff as my go-to. Some bristles fall off but hasn't been excessive for us.

works well but I wish the handle was a couple inches longer