Review on Nilight - 50029R 120 Pcs Standard Blade Fuse Set 5A/7.5A/10A/15A/20A/25A/30A AMP Assorted with 10 Pack 14AWG ATC/ATO Inline Fuse Holder, 2 Years Warranty by Anthony Parker

I've seen other reviews saying some of them were poorly formed or baggy. I checked them all in my package and don't see any problems. Plugged one in to test DC on my desktop and it completed the circuit. So the fuse holders are a one for me. I only needed 1 or 2 anyway, I actually bought this backup set. I haven't tested them for overload yet, but the thread sizes seem accurate. Another guy complained that it was aluminum wire. I cleaned one of the wires with a utility knife and the copper is very clearly visible there. It's tinned copper! As you would expect from something that advertises water resistance. Great bonus as it happens in my boat.