The DN-7-SA-SE reverse action curved 45 very fine pointed 4.5 tweezer is made of anti-magnetic stainless steel. This normally closed tweezer is great for holding parts without finger strain. Specs amp; FeaturesFine Points, Reverse Action, Application: Great for holding parts without finger strain , Quality: , Surface Resistivity : Conductive, Shape: Curved, Tip Angle: 45, Material: Anti-Mag. SS, OAL: 4.5 (112.5mm), Body Width: 0.375 (9.38mm), Body Height: .05 (1mm)