Free download: Awesome UI Kit

This Awesome UI Kit from Freepik.com is massive and a fantastic way to ease into flat design. Perfect for a host of projects, the UI kit is unashamedly neutral, providing a framework for your own design, not dictating your approach as a lot of UI kits do.

A great range of UI components are included: boxes, paginators, product ratings elements, blog elements, and all manner of e-commerce goodness.

The PSD is supplied with vector graphics, making the set resolution-independent and ideal for designing for retina displays. Also included is a coded HTML file.