Fuction:Connect with the Electrosurgical Unit, use the two oval buttons swith of the pencil-"Coag" and "Cut" for surgical operation. Longth of the pencil:170mm-ABs pencil apperance Longth of the tip :4cm Stainless Steel Blade electrode Diameter of the tip:2.3mm Longth of the Cable:3m-PVCmedical cable Package: 100pcs/Carton Size: 46x23x28cm G.W: 8.0KG N.W:7.0KG Maximal output currrent: 1A Frequency confine :0-1.0MHZ Current resistance:200 Ways of aseptic technique:Sterile EO Term of sterility:2 yers