and high quality. Durable & Firm & Stable. Contact Load: High Power. Terminals: 4 high quality durable & firm terminals. Sphere of application:construction vehicles, cars, and other large vehicles. Tips: The product may be updated constantly, The Actual Product May Have Slight Differences Or Color Differences the color and appearance may be changed, please don't mind. And take a consideration before place the order if you have request for color or appearance. Stud Diameter:6mm/0.24inch Contact Form:normally open How to wire: the wiring diagram is printed on relay 30:postive 87:appliances 86:negtive 85:ground Voltage:12V DC Rated Current:100A Colour:Black Material:Plastic Package Contents: 1 * Relay 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.