This is Audio Fuse Box with Display. The built-in digital display screen provides a clear and easy-to-read view of fuse status, ensuring that you can quickly identify any issues, it is built to withstand high temperatures, ensuring its durability and safety. The simple installation process, makes it user-friendly and accessible for all. Features -Color:Black -Material:Plastic,stainless steel,rubber -Size:6.80X5.60X3.30cm/2.67X2.20X1.30in -Fuse:100A -Hole:9mm (4GA) -Digital display: fuse box with display, which is easy to check fuse status. -Multi-functional design: can be used for easy replacement and management. -Made of stable, wear resistant materials to ensure durability and safety. -Easy installation: easy installation, convenient for users to install themselves. -Widely applicable: Suitable for a variety of audio systems to meet the needs of different users. Package list: 5 x fuse block