Most modern vehicles have engine bays or trunk spaces with angled or sloping surfaces, making it difficult to mount many other relay boxes. To enable trouble-free mounting on these surfaces, we engineered our relay block with uneven mounting supports. Alternatively, the included rubber spacer lets you mount the fuse relay box on flat surfaces. Features - Color: Shown in the pictures. - Material: Plastic. - Size: Approx. 12. .6 x 7.3cm/ 5 x 3.8 x 2.9 inch (LxWxH). - The Snap-Fit upper and lower cover cases allow easy access for relays, , and wires. - Metallic are included can effortlessly swap out relays and from the back of the fuse relay box. - Tidy up your vehicle’s engine bay by securely stowing your relays and in this sturdy relay box for backed by unbeatable protection. - Simply crimp your wires to the included metallic pins, place them into the desired slots located on the backside of the relay box, and direct the wires to the cable opening holes and snap the lid shut. Most modern vehicles have engine bays or trunk spaces with angled or sloping surfaces, making it difficult to mount many other relay boxes. To enable trouble-free mounting on these surfaces, we engineered our relay block with uneven mounting supports. Alternatively, the included rubber spacer lets you mount the fuse relay box on flat surfaces. Most modern vehicles have engine bays or trunk spaces with angled or sloping surfaces, making it difficult to mount many other relay boxes. To enable trouble-free mounting on these surfaces, we engineered our relay block with uneven mounting supports. Alternatively, the included rubber spacer lets you mount the fuse relay box on flat surfaces. Package list: 1 -Slot Relay Box 6 6 Relays Fuse Relay Box for Automotive and Marine Use