We had used the small size (7”) of PLASTIC BOBBIN. But in this 7” Bobbin, YARN CONSUMING METERS are not sufficient to us. So, we go for a 9” PLASTIC BOBBIN. IT IS VERY USEFUL FOR US. There is no Damage, No Wobbling, High Productivity; less man Power and Yarn winding Time is also reduced with many more features. Finally we had saved 5% of the END Product (Dhotis, Sarees)