Sterilite 20518006 Stackable Storage Drawer (Pack of 2)

What are the dimensions of a single box?

The item description says 12 7/8 x 8 7/8 x 6 the features and details says 17.25 x 12.75 x 6. why the discrepancy? what are the actual dimensions.

Is it easy to carry?

what is the inside dimension of each unit?