Adding a new accessory to your car, truck, or boat and need to protect that circuit? This uxcell inline fuse holder set is exactly what you need. You get two complete holders, each with a hefty 50-amp ATC/ATO blade-style fuse already installed. The wire is a solid 10-gauge (AWG) red insulated copper, which is thick enough to handle serious current without getting hot. The cool part is the design: it has a dual-slot, tight-fitting waterproof rubber cap that snaps over the fuse compartment. This keeps moisture, dust, and grime out, which is a lifesaver in engine bays or marine environments. Each holder has about 6 inches (15cm) of wire on a loop – just cut it in the middle, connect one end to your power source (like the battery or a distribution block) and the other end to your device (lights, winch, stereo amp, etc.). The tin-plated copper terminals ensure good conductivity and resist corrosion. It's a simple, professional-grade solution for DIY electrical projects. Having two in the pack is great for running multiple circuits or just keeping a spare. Much safer than those cheap, flimsy holders that can melt. Just make sure your wiring and device are rated for the 50-amp fuse, or swap it for a lower value fuse as needed.