Features DUAL SCREWS WITH CLOSED SCREW DESIGN - GearIT Banana Plug Connectors with Dual Screw Speaker Connector provide optimum signal transfer from speaker wires. Dual screws keep the speaker wire connection strong and secure EASY TO INSTALL - GearIT Speaker Plug Connector make speaker wire installation easy and is best suited for Speaker Wire, Wall Plate, Home Theater, Audio/Video Receiver, Amplifiers and Sound Systems COLOR CODED GOLD PLATED CONNECTORS - Gold plated speaker plug connector pins resist corrosion for long lasting use. Positive end for red, and white end for negative speaker wire connector. COMPATIBLE WITH SPEAKER WIRE SIZES - Speaker plug accepts speaker cable sizes from 10 AWG, 12 AWG, 14 AWG, 16 AWG, 18 AWG, 20 AWG speaker wire. The 10 gauge (10ga) audio cable will only capture the wire itself as the banana plug is not big enough to accept the speaker cable insulation jacket as well. Maximum up to 4mm diameter with jacket. PACKAGE CONTENTS - Each GearIT Speaker Plug pack includes six pairs (12 pieces) banana plug connectors made of pure copper, gold-plated pins, and non-magnetic. All GearIT Banana Plugs come with limited lifetime warranty. Video