Wire Specifications: The colors of wires stand for the wires of different relays(Available relay wires includes: White, Green, Yellow, Black,Brown and Blue). Please pay attention to the thickness of wires: Thin wires needto be connected to switches, and the thick wires need to beconnected to the devices.As for the rest wires: Red wires are the positive poles of fusesneed to be connected to the battery+. Grey wire is the otherside of relay coils, needs to be connected to battery-. Type:6-Way Automobile - Modified Fuse Relay Box Colour:Black Material:ABS Package Contents: 1 * car Fuse relay box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.