Premium Construction and Performance – The Cardas CAB Locking Banana Plug Binding Post Female Socket Jack Speaker Cable Connector is built for superior conductivity and durability. Each plug is made from eutectic brass and plated with rhodium over silver for corrosion resistance and long-lasting performance. Features dual hole sizes (6 mm and 4 mm) to accommodate various speaker cable diameters. Versatile and User-Friendly Design – Equipped with a secure locking mechanism to prevent accidental disconnection. Compatible with a wide range of audio equipment, including home theater systems and studio monitors. Ease of Use and Compatibility – Designed for solder termination to ensure a strong, permanent connection. Can be used to terminate speaker cables or as a spade-to-banana adapter. Specifications: - Connector Type: Solder - Gender: Male - Hole Size 1: 6 mm - Hole Size 2: 4 mm - Material: Eutectic brass, rhodium-over-silver plating, brass nut, gold plating, spring tensioner - Magnetic Properties: Non-magnetic (very low magnetic susceptibility) Package Includes: 4 x Banana Plugs. Other items shown are not included.