I order this sawing machine I received the machine on 28th August, did a trial of straight stitches on plain cloth, and was working fine. Later when tried to stitch on cloths with variable thickness due to folds, the thread started getting entangled inside the bobbin case and break. Again, after clearing the stuck thread from the bobbin case shuttle, I tried to stitch a pattern on a two folded plain cloth, the thread would entangle inside bobbin case and break. I tried straight stitch again and it was working, then tried a pattern the thread started entangling inside the bobbin case and getting stuck. I decided to return the product since it was under the return period. Avoid buying this machine.