a thin, rectangular piece of plastic black or grey a spool at each end labels on the end of the spool a thin, clear window with a sprocket wheel visible through it a magnetic strip along one side
videotape which is a thin, rectangular piece of plastic videotape which has black or grey videotape which is a spool at each end videotape which has labels on the end of the spool videotape which is a thin, clear window with a sprocket wheel visible through it videotape which is a magnetic strip along one side