The present invention relates to a lead (300), especially a lead (300) for neural applications, preferably a lead (300) for a neurostimulation and/or neurorecording system, wherein the lead (300) comprises at least one length adjustment mechanism (400), wherein the length adjustment mechanism (400) is configured such that the length of the lead (300) is adjustable. Furthermore, the present invention relates to a neurostimulation and/or neurorecording system (100), a thin film (301), a fixations means and a locking mechanism.