Full set of battery terminals for Nintendo Game Boy Color (GBC) consoles. 2x on-board single terminals, which require soldering in, and 1x double case terminal, which slides into the case. Your purchase of this item implies that you are skilled and experienced in soldering and know what is required in order to install these. No instructions are provided. The seller is not responsible for injury or damage caused by improper soldering or lack of knowledge of the actions required in order to install these.