Feature: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: 12.051Material: Pure Copper and Gold PlatedSize:Inner Diameter: Approx. 4.00mm/0.16inOuter Diameter: Approx. 4.80mm/0.19inPurpose: Electronic Measuring Accessories.Package List:10 x Pure Copper Gold Plated Connector (Female) Note:Do not place it in corrosive gas and liquid for a long time to reduce the service life.