●【Heavy Duty Auto Test Light】: Large size tester body made with high quality ABS, heavy duty, shatter-proof, durable than normal test light. ●【6-24V Widely Use Circuit Tester】: Designed to check vehicles electrical circuits, automotive battery, circuit integrity and other 6-24 volt wiring and circuits. ●【High Quality Material】: Made with sharp super hard steel probe for piercing wires, also for hard to reach areas. ●【Extended Spring with Large Clip】: Portable 135 inch long enough PVC spring wire cord and large size alligator clip for easy and one hand operation. ●【Additional Replacement Test Bulb】Strictly tested long service life test light bulb, including 1 pcs replacement conductive spring& bulb set to make it serve you faithfully for years. 100% customer satisfaction service.