Abstract: An ESL and ESL holder combination includes a locking mechanism for releasably securing the ESL to the ESL holder and an ESL provided with at least one gripping means for cooperative engagement with the ESL holder. A protruding, spring loaded locking element is arranged on the ESL for cooperative engagement with the shelf edge rail. The ESL holder is attachable to the edge of a shelf, the ESL holder being provided with one or more receiving means such as slots for receiving the gripping means and the locking element in cooperative engagement. The spring loaded locking element arranged adjacent to the gripping means and positioned on the ESL such that the spring loaded locking element cannot enter the receiving means on the ESL holder during insertion of the gripping means into the receiving means, and such that it enters the receiving means by spring action when the gripping means is brought into a hooked position, in the receiving means.