Twidec/360Pcs 2.8/4.8/6.3mm Quick Splice Male and Female Wire Spade Connector Crimp Terminal Block Assortment Kit with Insulating Sleeve for Electrical Wiring Car Audio Speaker

Excellent, works well, I recommend it.

Great basic quality for clean wire installations tv car and hobby projects . Work nicely with stranded wire 18 thru 26 gauges. Recommend the compression tool to properly attach wire to connectors. Nice clear plastic separator containing all connectors.

Spades and connectors are good quality, great value, and function has they are supposed to...but as others have noted...once joined they are very difficult to separate. I even tried to put a small amount of dielectric grease to see if that would give enough lubrication to separate them easier. The dimple that slides in to the divot to keep them held together is very ridged. That locking should not be permanent and with some force should separate but this is not easy to do with these connectors. You will either need to use a pick to push the dimple in (which would require you leave the protective sleeves loose so you can slide them back for removal) or you can use a pair of needle-nose pliers (hold the spade) and a flathead screwdriver (twist against the pliers to push the female connector) to separate or have a very thin flat terminal removal tool. In a few tests I did I actually had to re-bend the female connector because it would deform due to the force needed to separate. Crimp tool is solid and well built...but it does stick at times when opening and I had to oil it for smother operation. Bottom Line...if you are not planning on removing these connections once they are joined these should work great. If you need connectors with a quick release locking mechanism because you plan to plug and unplug these often these connectors are probably not for you.

Just got the Twidec 360-piece quick splice set (2.8/4.8/6.3 mm) and couldn't be happier. It’s a total life-saver when I'm wiring my car audio, installing speakers, or messing with home electronics. What makes it awesome: Huge variety of sizes: With 360 pieces across all three sizes, I’ve always got the right fit no matter the wire job—big or small. Fast & tool-free: These splices are so quick—just clamp, snap, and crimp. No stripping, no messing around. Great when I'm in a rush. Solid connections: Once clamped, everything stays snug and secure. No loose ends, and vibration-resistant—perfect for car setups. Value-packed: For the price, getting three sizes and this many pieces in a neat organizer is a steal. Perfect for DIYers, car audio upgrades, or any quick wiring fixes. If you want fast, reliable wiring splices without the fuss, this Twidec kit’s the real deal. Highly recommend!

Works great. Lots of options. Great to have on hand

While these light weight connectors are for sure NOT made of steel, they are non-magnetic. I am not so sure they are made of copper, as it says in the description. Scrap off the tinning and it looks like they are made of brass. Not that it matters much, both are good electrical conductors. The largest size spade connector is 0.7mm thick, the two smaller sizes are 0.3mm thick. This makes them pretty flimsy in my option. Maybe good enough for DIY, but not for long term solid construction. The tabs that are supposed to be bent over the wire and crimped to make the connection are short and small. They do not hold a wire just by crimping. You have to solder the wire to the connector. In this regard these connectors are excellent, the solder flows onto the tinned connector real good. The nylon insulating sleeves in this kit are again thin and not very durable. They look to be good for a hobby science experiment setup, but not for long term service under the hood of a car. I would use these connectors for hooking up audio, but not for any kind of power. The nylon insulating sleeves supplied with this kit just slip off the connector and back up the wire. Kind of useless. A length of heat shrink tubing would work much better, and stay put and insulate the connector.

Perfect for mending speaker wire connections

Good quality, I like the connectors they work well. With a good crimping tool these are great, easy to get a high quality connection. A good variety of sizes, this is a nice assortment for the price. I wish I had these a long time ago.