Th3 334C two star double ended probe with angled points is made of hardened stainless steel and has an overall length of 5.5.Specs amp; FeaturesDouble EndedQuality: , Surface Resistivity : Conductive, Shape: AngledAngled, Tip Angle: 90, Material: SS, OAL: 5.5 (137.5mm), Tip Width: .01 (.25mm)