Second set I've purchased for 12 gauge high-quality speaker cable. You have to really trim properly for the little banana plug to "screw" into the barrel securely. But once that is done, the "grip" is robust. As well, these banana plugs are a great value, compared to others on the market. Only dropped "one maple leaf" because they are a bit finicky. BUT, take your time, and you'll end up where you need to be!

worked okay in my application . Price and delivery time very good.

Opening in the base is just a touch over 4mm in diameter. Fits a 12AWG wire with jacket. Could fit a 10AWG wire in with the jacket removed but this is not the intend way to use them. They are well made with good weight and solid construction. The tips fit solidly into my jacks.

Good quality product, came in fast

Look great, haven’t used yet

Très bon