The 12-Way 10AWG Up to 4/0 AWG Gauge Battery Terminal Connectors by Sunmorn are top post silver connectors made of durable zinc alloy. They come in a pack of 16 and have an operating voltage of 12.0. These through-hole connectors have a copper insulation material and contact material, ensuring reliable connections for your car audio and video installation needs. With a stud size of #2 and a compact package size, these clamp connectors are ideal for various vehicle electronics and GPS installations.