Usage Tips:Premium Construction and Performance - The Cardas CAB Locking Banana Plug Binding Post Female Socket Jack Speaker Cables Connector Plug is a testament to superior craftsmanship and performance. Each plug is meticulously constructed from eutectic brass, which is renowned for its excellent conductivity and durability. The plugs are then plated with a layer of rhodium over silver, ensuring a corrosion-resistant and long-lasting connection. The plugs are designed to fit a variety of speaker cables, with hole sizes of 6mm and 4mm to accommodate different cable diameters. Versatile and User-Friendly Design - These banana plugs are not just about performance; they are also designed with user-friendliness in mind. The locking mechanism ensures a secure connection, preventing accidental disconnection. The plugs are compatible with a wide range of audio equipment, making them a versatile addition to any audio setup. Whether you're connecting your home theater system or upgrading your studio monitors, these banana plugs are the perfect choice for a reliable and secure connection. Ease of Use and Compatibility - The Cardas CAB Locking Banana Plug Binding Post Female Socket Jack Speaker Cables Connector Plug is not just about performance; it's also about ease of use. The plugs are designed to be soldered, ensuring a strong and permanent connection. These plugs are compatible with a variety of audio equipment, making them a versatile addition to any audio setup. Single Banana Plug, non-magnetic(Weak magnetism), eutectic Brass, Rhodium over Silver plate. Brass nut, Gold plate. Spring tensioner. The CAB can be used to terminate a speaker cable, or as a spade-to-banana adapter. Connector:Solder Gender: Male Hole Size 1: 6mm Hole Size 2: 4mm Colour:As Shown Material:brass chrome plated Package Contents: 4 * Fever speaker plug Only the above package content, other products are not included.<b