GUMProxabrush Go-Betweens Refills - Moderate - Compatible with GUM Permanent Handle - Reusable Interdental Brushes - Soft Bristled Dental Picks, 8ct(6pk)

Hard to fine locally but easy to find online.

Have used these for years. Nice price. Does a good job of cleaning between your teeth.

Functional.

The brushes work well. They should be changed out regularly. As they get old, the wire break.

The proxy brush works great, and the price is good

My dentist tells me that the shape of my teeth just happens to make me more susceptible to getting food trapped between them than most, and she recommended I use these brushes before brushing (or when I'm annoyed by something stuck where it shouldn't be). I've often found that dental floss just doesn't do the job, and toothpicks are hit-or-miss. These are like pipe cleaners that slide in easily and pull out everything -- literally brushing between the teeth. I still floss regularly (especially areas where there isn't enough space to trap food), but using these brush heads on the plastic tool my dentist gave me has been a lifechanger.

Sometimes hard to find in the store, so buying through Amazon is easy. A little pricey, though.

Great product!