Win10 Flat - Icon Pack is wonderful square and flat icon pack that will make your phone look very elegant. (Formerly called Windows 10 - Icon Pack)
To be able to use it on your phone you need to install a launcher such as Nova launcher among others.

-> Instructions for use
Open the Win10 UI application and inside it go to the menu that is in the upper left.
-Select set or apply.
-It will show you the launchers supported and in the first place the ones you have installed.
-Select the one of your preference and press accept.
-You do not have any installed launcher just select it and it will take you to the download link of it.
-You can also open your launcher and from there apply Win10 UI - Icon Pack.
-You can also use an IconChanger if you do not have a launcher.

-> Features
- 4200+ Custom icons.
-80+ Wallpapers ..
-Intelligent request of icons via email.
-Design plastic.
-Iconos HD with resolution 192x192 pixels.
-Apk super light with only 10 Mb
-Support for the following launchers:

Compatible launchers included in the application section:

Action Launcher
ADW Launcher
Apex Launcher
Aviate Launcher
CM Theme Engine
GO Launcher
Holo Launcher
Holo Launcher HD
Lucid Launcher
M Launcher
Mini Launcher
Next Launcher
Nougat Launcher
Nova Launcher
Smart Launcher
Solo Launcher
V Launcher
ZenUI Launcher
Zero Launcher
ABC Launcher
Evie Launcher

Compatible launchers not included in the board:

Arrow Launcher
ASAP Launcher
Cobo Launcher
Line Launcher
Mesh Launcher
Peek Launcher
Z Launcher
Launch by Quixey Launcher
iTop Launcher
KK Launcher
MN Launcher
New Launcher
S Launcher
Open Launcher
Flick Launcher
Atom
Y more.

-It is not compatible with the default launcher of your samsung or huawei phone.

-Support limited in launcher go launcher because it does not support masking icons.

-This package of icons uses the CandyBar board.

-Interface Graphic in several languages.

-Icons with the colors and style of windows 10 of microsoft corporation.