This is a handy little tool that I am glad that I stumbled upon. It does one odd job and it does it well. The brush fits the gap better than anything else you're ;likely to find at the hardware store.
My pan set has glass lids attached to metal and a seal. I got tireed of having to use a toothpick to try to clean the place the glass, seal and metal joins, so was thrilled to find these. It helps for hard to clean crevices and window slides.