1 grommet type:10.5 and 13.5mm 2 working:Manual 3 can punching at fabries,canvas,banners,posters,sailcloth,flxible material Steel manual single punching machine for canvas The manual grommet machine is breaking free from the traditional ideas, adopts the pioneered design that to use the single grommet for eyelet making on pieces.Application:Fix grommets onto pieces such as fabries, Canvas, ...