The makers of UXPin have released a free Material Design UI kit (opens in new tab): a set of 140 handcrafted UI elements and 35 hi-fidelity screens. The kit also includes Material icons, layered files, and Google fonts.
The library includes everything from headers and footers to contacts, galleries, calendars and more, all neatly organised into folders for ease of use. Everything is available in three formats – Photoshop, Sketch and Illustrator – making it simple to slot into your design workflow.
All UI elements are available at 3x resolution and are Guideline-compatible. Of course, the kit is also available for use in UXPin, a full-stack UX design platform for prototyping, design systems, and automatic documentation.
Material Design (opens in new tab) is Google's unified design language, based around cards, grid-based layout, responsive animations and clever use of depth effects. Since its release in 2014, the system has boomed in popularity.
Download the UI kit here. (opens in new tab)