Groova Tool
Anyone who has ever tried to clean sliding window and door tracks knows that some crevice-tool devices that are provided with your vacuum cleaner are too wide to fit into the sliding track.
Screw drivers, meat skewers, paint brushes, toothbrushes - you name it, you've used it to try to get your sliding window and door tracks clean.
The GROOVA is a much narrower attachment with a small replaceable brush on the end to allow you to get right into the corners.