The MW5-SA three star straight tapered ultra fine pointed tweezers is primarily used for microscopy. The style 5 has the finest points available. MW Features: radius inside edges on the tips. Overall length is 4.25. It is made of anti-magnetic Neverust stainless steel.Specs amp; FeaturesUltra Fine Points, Radius Points, Application: Microscopy - Tapered tips offer better visibility - Radius points protect delicate wires, Quality: , Surface Resistivity : Conductive, Shape: Straight Tapered , Material: Anti-Mag. SS, OAL: 4.25 (106.25mm), Body Width: 0.375 (9.38mm), Body Height: .06 (1.5mm), Tip Width: .004 (.1mm), Tip Height: .002 (.05mm)