The Product which you can see Beside is iPhone 6S Power flex .
iPhone 6S Power flex is a high quality and affordable repair part.
iPhone 6S having problem with not power on Press and hold the power on button When you notice that no motion while pressing and doesn’t make proper contact with the Power flex and its not working properly replace it with below Product.
iPhone 6S Power flex is designed to work perfectly.
The image below use to present product is just for reference
actual product will be different from image.