Using leverage means that you can trade positions larger than the amount of money in your trading account. Leverage amount is expressed as a ratio, for instance 50:1, 100:1, or 500:1. Assuming that you have $1,000 in your trading account and you trade ticket sizes of 500,000 USD/JPY, your leverage will equate 500:1.
How would it be possible to trade 500 times the amount you have at your disposal? At Tradobox you have a free short-term credit allowance whenever you trade on margin: this enables you to purchase an amount that exceeds your account value. Without this allowance, you would only be able to buy or sell tickets of $1,000 at a time.