Features BRASS MATERIAL Made of excellent brass material with high strength, high hardness and strong chemical resistance. PROFESSIONALLY MADE:Made and processed with high precision CNC process technology, the connector is standard. Excellent Performance The connector has excellent transmission performance and contact performance with good stability. Plug Proof: the battery accessories are plug resistant, not easy to damage, reliable and durable. 50 PCS SET The kit includes 50pcs plugs for your use with 5mm specification used for industrial batteries. Specification: Item Type:5mm Battery Connector Plug Material: brass. Specification: approx. 5 mm / 0.2 inches. Package list: 50 x 5 mm battery connector plugs. Package List 50 x 5mm Battery Connector Plug