holepunchItem:HS212-80 (two holepunch) Patent No:200530129584.4Explanation: Paper Capacity:1-30 sheets\80g Single Weight:0.4083KGS Hole distance:80mm NW:19.6KGS Hole diameter:Φ6.0mm GW:21.2KGS Products Size:122×120×62mm PACKING:1\12\48(PCS) MEAS:520×394×297mm COLOR: Gray-Blue& Silver-GrayProduct Features:1.Soft plastic cover.comfortable feel2.Meatl structure,durable in use