Abstract: A spectacle frame securing device for securely displaying of a product, such as a spectacle frame or glasses, relative to a display board with a display surface includes at least one display unit including a frame or chassis for arranging thereof relative to the display surface, a product holder for holding of the product during displaying thereof, and a lock-in assembly. The lock-in assembly includes a lock-in member movable between an opened position and a closed position, for locking in of the product in the holder when the lock-in member is in the locked position and transfer means for transferring of a movement to the lock-in member from drive means for the purpose of moving between the opened position and the closed position. Each of the at least one display unit is separately arrangeable relative to the display surface arrangeable of the display board.