Feature: 1. Relays and Fuses Supported: Safely store up to 5PCS for Bosch Style 40/30A 5 pin relays or 30A 4 pin relays (0.25in pin compatible), 1PC RTT7121A 4 pin relays, and 6PCS ATO/ATC blade fuses. 2. Well Equipped Set: Fuse relay system includes accessories of 5PCS 4 pin 12V 40A relay, 1PC RTT7121 12V 40A relay, 6PCS fuse and 41PCS metal pin points, stable performance and higher reliability. 3. Plug and Play: The heavy duty fuse relay box adopts snap fit upper and lower housings which can conveniently realize easy installation of relays, fuses and wires, safe and fast, greatly improve the time efficiency. 4. Comes with Accessories: 6 way fuse box relay comes with metal pins, therefore, you can easily replace relays and fuses from the back of the fuse relay box, bring you more convenience. 5. Durable Construction: The 6 way fuse relay box is manufactured by carefully selected ABS plastic with higher strength, not easy to wear or damage, has a long lasting service time. Specification: Item Type: Fuse Relay Box Material: ABS. Package List: 3 x Fuse Box Box Accessories5 x 4 Pin 12V 40A Relay1 x RTT7121 12V 40A Relay6 x Fuse3 x Silver Metal Pin Insert29 x Gold Metal Pin