Answer: The specifications of future contracts can always be found on the website where the offer is made or in trading pits
Explanation: Futures contracts will always have their specifications as to the amount that must be offered, expiration date of the contracts, minimum quantities that can be purchased and other elements that can help us verify or work on these contracts.
The elements that make this type of contract generally mark a trend in which you can easily buy and sell for this type of contracts, becoming more liquid than bonds and other financial obligations.