Material: stainless steelPunch 8 sheets A4 at a time.Size: 130*11*57mm/5.12"*0.43"*2.24".Mini and compact, all-metal construction, rugged, with paper scrap collection deviceDesigned for simple use, guaranteed to fit any size hand with ultimate comfort.You'll be able to punch through even the thickest of cardstock or folders.Specification:Specification: 130*58*15MMWeight: about 60 grams with packagingmaterial: metalPunch 1-8 pages hand-held punch pliersPackage Included:1*Belt punchIf you have any questions about the product, please contact me, we will contact you within 24 hours and give you a satisfactory answer.2. Pay attention to the strength when hammering the diamond, first light and then heavy, feel the effect.