Waterproof Relay Box: This 12V relay box is equipped with a top cover and a bottom cover. The box is made of material, flame retardant and waterproof, durable and safe, the overall structure is strong, and the quality is reliable. design: this relay box is designed with 6 slots, 5 slots for 5-pin Bosch relay, 1 slot for RTT7121 4-pin relay and also for 6-slot relay base of ATC/ATO fuse. design is safer to use. 41 suitable terminals: It is equipped with 41 appropriate relays and fuse terminals, enabling you to install and use the fuse and relay box immediately and easily. Easy to install: This relay box includes all necessary connecting pins. It has a cable opening hole, which is the outlet of all wires and can be connected together. You can completely install and easily replace the relay and fuse from the back of the fuse relay box. The brackets on both sides of the box allow it to be mounted on any wall inside the cars. Colour:black Material:ABS Package Contents: 1 x Fuse Relay Box with Top Cover and Bottom Cover 5 x 5-pin Relays 1 x RTT7121 4-pin Relay 16 x Blade Fuses (4 x 10A, 4 x 20A, 4 x 25A, 4 x 30A) 41 x metal terminals 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.