CSLOL Manager, formerly known as LCS Manager is an application created to install custom skins in League of Legends. This app is created by Moonshadow565 on Github as part of League Toolkit. Join League Toolkit on Discord
If you have any questions about CSLOL Manager or Custom Skins, join any of the trusted custom skin communities on Discord and ask for help there.
Skin Empire: https://discord.gg/nRxqxBHjeu