Abstract: A bistable device for representation of a point of a tactile information having an axially displaceable touch pin, an electromagnet moving the touch pin, and a lower permanent magnet located cooperatively adjacent the lower pole of the electromagnet and connected to a locking body for moving the locking body from an inoperative position into an operative position, permitting and blocking, respectively, displacement of the touch pin into its inoperative lowered position. A non-magnetic rod lengthens the touch pin and cooperates with the locking body at the rear. Between a touchable end of the touch pin and the adjacent front pole of the electromagnet, an upper permanent magnet is arranged on the touch pin and/or on the lengthening rod. The two poles of the permanent magnets which point to the poles of the electromagnet are alike.