I bought this thinking that Singer, a formerly reliable company, would not put out a bad product.  Unfortunately,  I was wrong!  No matter what number the tension dial is on, the stitching underneath is never right.  The machine is plastic and difficult to take apart.   We are told that the bobbin tension is preset at factory. Right now this machine is useless to me.  Waste of money.  I haveca Featherweight that is still working beautifully.  So disappointed in Singer!!