Here is a huge collection of Material Design-inspired wallpapers that will bring a cleaner interface to your Android phone. One of the biggest changes in Android 5.0, Lollipop is the new Material Design user interface. It is exciting, because the new design language makes Android look modern and everything is slick and cool. Material Design will also add a feeling of ingenuous to the interface.
Wallpapers are one of the quickest ways to spruce up your Android phone’s home screen and they will certainly bring new life to your phone. Material Design wallpapers will bring slick and cool interface to your Android phone. Here is a collection of (150+) Material Design- inspired wallpapers.
Now, if you do not know how to apply these wallpapers properly without cropping on your Android phone, install a free app called “Image2wallpaper” from Play Store. It lets you sets the picture as wallpaper with or without resizing. (source)