hi purchased your product but could you kindly tell me the meaning of contracts in this case thanks

Thank you for purchasing the tool.

"Contracts" refers to the size of the position you want to open.

If you trade forex, it refers to the size of lot. In the case of tranding futures, it will refer to the number of contracts with which the position will be opened.

It would be more correct to put "Position Size" instead of "Contracts".