Very good quality spades - good weight, well built, etc... I'm using them to bi-amp a set of speakers so had to buy 2 packets of these (8 spades) + banana clips on the other end. So my total price for this upgrade was ~$200 which is a little unreasonable I think. The product is good and it has improved the audio experience. Installation was easy - even having to strip 4 wires, and attach 16 units (8 spades, 8 banana plugs) took only about an hour. The result was immediate and I have to say it is the biggest improvement to my system by having good strong connections, which these spades enabled. So overall happy, but just wish it didn't cost so much!