What are the formats of the photo prints?

Because simplicity is at the heart of our concerns, we have chosen for you the most suitable and standard format for photo prints: a glossy 10×15 pape

An eligible photo has a size greater than 1200px * 800px.

Like what:

1300 x 850 = eligible >
1300 x 750 => not eligible
1100 x 850 => not eligible