Cleqee 10PCS Insulated 4mm Banana Female to Jack Socket Connector Adapter Coupler for Extension Electrical Testing

4mm banana female to female socket adapters are made of pure copper material. And the shell is made of PVC. Both ends can accept all standard 4mm banana plug like shrouded, non shrouded and retractable plug. Rated voltage/current: 30Vac-60Vdc/Max.19A. Suitable for engineers or DIY enthusiasts. They can be connected to 4mm banana plug cables to extend it into a longer cable. Suitable for doing testing in schools, homes, laboratories and factories. Package include: 5PCS Black + 5PCS Red 4mm Banana Socket. Hope you can be satisfied with our products. We will always provide friendly customer service.