Product name: Portable ECU Test Coil Size:6.8*6.8cm/2.7*2.7 inch (approximately) Color: As shown in the figure Material: ABS Features:It can be used to check lock loop. Auto lock inspection loop auto car key lock chip antenna tester. If have light on but can't start car, means the chip have problem. Auto lock inspection loop is indispensable for locksmith or key programmer. Checking auto lock loop, if light on means the lock no problem; if no light on means the lock loop have problem. Attention: 1. As we all know , the different computers display colors differently, the color of the actual item may vary slightly from the following images. 2.Please allow 1-2cm measuring deviation due to manual measurement. Shipment includes: 1 PC x ECU Coil Tester