What is the exact size of this flyer..is this two fold flyer...

Hello! I just submitted a design and I hope you can take a look on it. Looking forward to your feedback. Thank you!

Hi, Thank you for the invitation. I'll submit my entry as soon as early. Could you please provide the size of the flyer?
Thank you.

Hi,
First of all, thank you very much for your invitation. I have already submitted my design before your invention. Please give me your valuable feedback on #24290989

Thanks & Regards
Imagine Box

(#24320926) feedback please

What the size of the flyer? and can I use paid stock images?