is reduced a positive guiding surface 15 is provided on the stitch cam 2 to bring the needles to their immovable position in cooperation with the not shown needle selecting device and also not shown cam with pressing cam technique for each individual knitting needle it can be determined whether they must perform the unloading movement or not the needle feet 10 which about only with half foot height against the stitch cam perform no unloading movement while the needle feet which abut with the whole foot height against the stitch cam are engaged by the curved surface 9 and thereby perform the unloading movement when with this structural shape of the sinking element 30 it is turned to its outer end position not shown the selected needles can be sinking either on the small sinking surface 6 or on the wide sinking surface 6 plus 8 the arrangement 50 shown in fig6 and 7 makes possible the formation of stitches with another stitch size than the stitches formed with the sinking surface 6 of the needle sinkers 2 the arrangement has also a stitch cam 2 with a small sinking surface 6 as well as a positive guiding surface 7 the associated sinking element 31 is again supported turnably about a rotary point 41 and in fig6 is shown in its inner end position by loading in direction of the arrow 11 u2033 the needle feet which only with a half foot height against.