Review on GearIT Right Angle Banana Plugs For Speaker Wire (6 Pairs, 12 Pieces), 90 Degree Pin Plug Type, (Non Conductive Coating) Spring Clips Speaker Banana Jack Terminals (Support 12 AWG To 20 AWG Wires) by David Fisher

Quality was good. I cranked the set screw down rather tight with no stripping issues. I even took one back off and cranked it on once again and it worked fine. The pins seemed durable and I had no issues with them. I would prefer two set screws on the body but all six sets that I used had no issues with a loose wire once the set screw was tightened. I would also prefer a copper body. The red and black sleeves that slide over the connectors stay on well but I'll be careful when I pull out the connector if it's in tight. I feel more confident with non conductive sleeves rather than metal. Tip: Attach the connectors to your speaker wire so that the pins are pointing slightly away from each other rather than toward each other to help avoid shorting.