This machine is equiped with Polo-shirts Single Placket Sewing Device which Increases productivity. In case of using 2units LBH-1796A,The machine carries out a series of placket setting processes at 16 sec/pcs.It achieves 5.2 times as productive as general-purpose machines. This device is able to place aplacket on garment body whilethe machine is still engaged in thesewing of the current placket. Thismeans higher productivity can beachieved simply with 2 machines. This machine achieves not only contribute productivity, butalso enhance seam quality with ease. Furthermore, this device can be used as buttonholing machine which isoriginal function of this device. It means, you are able to use twofunctions with one sewing machine. Thereby, it eliminates both of thewaste of resource and unwanted extra costs.