... stitch distance equality and adjustable.High efficiency,can finish one quilt within 2 minutes.There are 6 models:7needle,9needle, ... ModelNeedle numberdiamensioncapacitypowderRotaryspeedNeedle modelNeedle distanceLK-0772.8*0.8*1.5m1 quilt/2minute1.5kw60r/minute25*45025-50mmLK-0992.8*0.8* ... number means the rows of sewing thread on each quilt,the distance between rows and distance between sewing thread ...