... .single grommet , save cost and manpower New arrival manual grommet machine made in China Dimension: 150*150*100 mmMould size : standard 4 #or ... positive ring, and negative ring, then put the flex banner in machine, press handle to finish it. It is too slow, ... operation is easier, work faster, can make around 1000pcs/hour; light weight, rivalrous price. New arrival manual grommet machine made in China