Pick one item from your inventory on the left to upgrade it and get a more expensive one. You can also use the balance instead of your skins. On the right, select the item you would like to get (use sorting to find the item easily).
What determines whether my upgrade will be successful?
The probability of a successful upgrade depends on the ratio of the cost of your skin to the desired one. In case of failure, you will get a cheaper prize than the desired one.
