Features 1、Good Conductivity: The back probe kit has excellent conductivity, which can assist instruments and equipment to read quickly and accurately. 2、Durable Material: Banana plug test leads kit is made of PVC, copper, PA, durable and not easy to damage. 3、30 Pieces: Test leads set contains 15 test probes, 5 4mm test Clips, 5 Test clip connections and 5 shell piercing probes. 4、Back Probes:There are 3 different probe angles ( 90°, 135°, 180°) can meet your various testing needs. 5、Size Parameters: The plug size of the rear probe test kit is 4mm and the jack size is 4mm, which is highly practical. Specification Item Type: Banana Plug Test Leads Kit Material: PVC, Copper, PA Jack Size:Approx. 4mm / 0.16in Package List 5 x Test Probes 90°(Red, Black, Yellow, Blue and Green) 5 x Test Probes 145°(Red, Black, Yellow, Blue and Green) 5 x Test Probes 180°(Red, Black, Yellow, Blue and Green) 5 x Test Clip Connecting Wire(Red, Black, Yellow, Blue and Green) 5 x Puncture Probe with Shell(Red, Black, Yellow, Blue and Green) 5 x 4mm Test Clip(Red, Black, Yellow, Blue and Green) 1 x Plastic Box