StringClub Cello Fingerboard Tapes are the best available product for learning the correct placements of the fingers. Unlike products that show lines on a single fingerboard overlay, the separate tapes have the advantage that you can feel where each individual finger goes without looking. This is very helpful since the eyes are often busy reading sheet music, watching a conductor, or looking elsewhere. A link to our website is included in case you want to watch a video and read the steps for applying the tapes properly. You will receive both black and white tapes in the package. Use the white tapes to see them best. Use the black tapes if you want them to blend in better for a sleeker look. You can still see the black tapes, but your audience will barely notice them. The tapes can be removed easily when you are ready to play without them anymore. They will not damage the fingerboard. Just a light cleaning of left over adhesive may be necessary.