These are keys, keys are purchased, when purchasing enter your username CORRECTLY. These keys are used at the crates area. These crates are rolled at the crates for a random item.

Booster Crate Key
1.50 USD
Basic Crate Key
0.99 USD
Potion Crate Key
1.50 USD
Advance Crate Key
2.50 USD
Fighter Crate Key
2.99 USD