Fuse holder must always be fitted at the battery end of the amplifier power supply to protect the car and a massive short circuit that would be caused in a vehicle accident or by a wiring problem. The item is a AGU fuse box block holder with robust construction. It is designed to protect the circuits and against and water jet, and debris. The box accepts for 4 or 8 input and output. for car alarm fitters, audio installers, auto electricians and diy use. Feature - Material: Plastic and zinc alloy - - Size: 8.5 x 4.1 x 2.3 cm ( W x H) - Rating: 100Amp - Type: AGU fuse holder - Gauge: 4/8 Gauge input and output - Mounted in crystal resistant housing, well the circuits and well against fog, water jets, , sand and debris. - Quick mounted additional circuits for electrical accessories such as car phones, CD players, fax machines, etc. - In-line AGU fuse holder and easy to install. - Protect the car and a massive short circuit that would be caused in a vehicle accident or by a wiring problem. - Coming with a 100 amp ANL fuse to configure this block for power applications. - Idea for car alarm fitters, audio installers, auto electricians and custom installation. Package list: 1 x AGU Gold Plated Fuseholder 1 x 100 Amp AGU Fuse