Diaper Bag Tote with Pacifier Case and Changing Pad, Dikaslon Large Travel Diaper Tote for Mom and Dad

would a 15 lb dachshund dog fit in this OK? Need a carrier and dog carriers all too small. Can't find measurements of this.

Would it work for 3 kids i have 3 in diapers and one on the way?

Does this bag work well with airplane travel?

What is the size of the package flat when delivered?