It is easy to use, simply plug and play, saving time and effort. This multi-functional test pen is a must-have tool for automotive repair professionals. With its professional design for testing car bulbs, it allows for accurate and efficient circuit testing. Features -Color:Assorted Color -Material:ABS, metal, plastic -Size:57.00X1.50X1.50cm/22.40X0.59X0.59in - They are strong enough, not easily deformed or broken, and can serve you for longtime. - It has a simple design, and very practical in use, giving you a . - Small size and lightweight, easy to carry. It is compatible with most car and automotive. - With long and probe to test hard to reach area, positive pole and negative pole display, convenient to use - Perfect for quickly and easily identifying faults in automotive circuits, making it an essential tool for any mechanic or DIY enthusiast. Package list: 1 x Testing Lamp 1 x Bulb 1 x Probe 1 x Testing Device