Juki HZL-F600 Exceed 225/625 Stitch Computer Sewing Quilting Machine, Knee Lift, Extension Table, 8x12in Bed Size, 4 Lettering Fonts, 16 Buttonholes

Knee Lever Socket shown below Stitch Selection Panel Board, is for you third hand, allowing both of your hands to insert fabrics under presser foot, do free motion work, and remove fabrics without having to manually lift the presser foot lever shown on the back of the machine.