PRECISE CONNECTIONS: These flexible back probe pins are engineered to interact seamlessly with round connector pins, excelling particularly with weatherproof connections. Navigate through complex layouts without compromising connection integrity. UNIVERSAL BANANA PLUG COMPATIBILITY: Effortlessly connect to any 4mm banana plug test leads using the back probes' simple push-in connection system. This feature maximizes efficiency and reliability, making setup swift and hassle-free, suitable for varied testing environments. FLEXIBILITY AND CONVENIENCE: Designed with adaptability in mind, the probe set features a bendable base that allows for precise positioning without damaging or stripping wires. Ensures accurate testing results in multiple scenarios without additional preparation. Color: Black & Red Material: Plastic + Metal Package Contents: 2 x Electronic Back Probes Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the real thing. The measurement allowed error is +/- 1-3 cm.