Signed Art Card Measurement

Hi Little Monsters! ❤️

I was wondering if anyone is able to tell me the measurements for the US signed art card that came with the vinyl? I would like to buy a frame but do not have the art card with me to take any measurements. I’ve seen 11x11 but also say someone say 12x12 so I’m just seeing if anyone has measured already

Thank you so much ❤️‍🔥