Mechanical end effector (1) comprising at least two movable parts (4, 5), wherein each of the movable parts (4 resp. 5) is mounted on at least two supports (6, 6 resp. 7, 7), wherein a relative position of the movable parts (4, 5) with respect to each other is variable by changing the relative position of the supports (6, 6 7, 7) with respect to each other, and wherein the supports (6, 6 7, 7) of the movable parts (4, 5) comprise bendable members, wherein the bendable members are equipped with mechanical properties that arrange for flexing of the bendable members when a force applied by the supports (6, 6 7, 7) of the movable parts (4, 5) exceeds a predefined value.