Specifications: Brand: Five Stars Model: JY01 Type: Hand Press Machine Size: 30x25x10mm Weight: About 3.5 KG Fit For: buttons, hit nails, corns, Tetraena clasp, prong snap button, rivets Features: * Extra Long Handle Grip Design to Save Energy * Allowing Grommets to Be Set Further into the Material, not just along the Edge * The period of using a hammer for manual grommets does not exist any more!