Machine with inserted link to sew the stuff, and its useful ... , Available to adjust the hand wheel by the directions of front. Black, left and right.2,The position of the needle ... . 3,Available to adjust large hook in the direction of front and back, which can prolong the life of the needle ... the stuff,6,Select a general Mocca Sewing Machine or a Mocca Sewing.7,Machine with inserted link to sew the stuff ...