Features 1、High Quality Material: It is made of pure copper and gold plated material, which is sturdy and durable to ensure a long service life. 2、Stable Performance: Good transmission performance, good contact performance, resistance to plugging and unplugging, and durability. 3、Exquisite Craftsmanship: Pure copper gold plated connectors are made with accuracy craftsmanship, which can be used for a long time. 4、High Accuracy: The metal connector is manufactured using high accuracy CNC technology, exquisite and practical. 5、Special Process: The metal connector adopts the gold plating process to prevent the product from aging and oxidation. Specification Item Type: Connector (Female) Model: 12.051 Material: Pure Copper and Gold Plated Size: Inner Diameter: Approx. 4.00mm/0.16in Outer Diameter: Approx. 4.80mm/0.19in Purpose: Electronic Measuring Accessories Package List 10 x Pure Copper Gold Plated Connector (Female)