Narrow diamond strips are 3/4 inch by 7 inch Velcro backed electroplated diamonds that can be used with a hard plastic file for surface and edge sanding or wrapped around fingers or other tools to get into hard to reach areas for grinding of your glass surfaces.
The diamond strip set contains one each of 60 grit, 120 grit, 200 grit, and 400 grit. It also contains one 3/4 inch x 11 inch plastic file blank with Velcro.