You are buying 1 BOSCH compatible quality 40A relay, TMC brand Description:DC 24V 5 pin relay.(SPDT) Single Pole Double Throw / 2-Way40A High Switching capacityWater Resistant SealedBuilt-in Bolt bracketFeatures 5 pin layout that accepts female spade terminals.Great for adding car stereo, alarm system remote start, fog lights, undercar lighting, turn on dome light, shared door handle, trunk release, reverse polarity, door locks, horn and more. Terminal Configuration: Pin 85: 24V+ Positive (Coil trigger) Pin 86: 24V- Negative (Coil trigger) Pin 30: Power InputPin 87: Normally Open OutputPin 87a: Normally Closed Output 12V Relays available in the following listing: https://www.ebay.com/itm/234489983801