SW Banana Plugs, 24k Gold Dual Screw Lock Speaker Connector, 4 Pairs 24K gold plating on the Connectors for a lifetime of use, with a crystal clear signal Double screws, when properly fastened, are said to be as effective as soldering, but clearly with much less hassle. Accepts wire size up to 4mm The casing unscrews over the tip, so you don't have to worry about keeping it on the cable when installing. For a hassle-free solution Contains 4 pairs/ 8 pieces