If you want to withdraw CS2 skins, follow these steps:
Pick CS2 skins from your inventory that you want to withdraw
Select the “CS2 Skins through WaxPeer” method of withdrawal
Copy and paste your Trade URL from your Steam account
On the left side of the withdrawal page select the preferred CS2 skin and it will  move to the right side
Click on the Purchase button and confirm a trade request on your Steam account to successfully store skins in your Steam Inventory