OLIVIA KOOBoy's Classic Tuxedo Suit with No Tail

Does this suit come shirt and bowtie

What is the clasp on the bowtie like?

What is the sizing? These sizes as small,medium,large and the chart doesn’t have them. I’m looking for a size 4t. Thanks

If we wanted to order 2, one for our 14 month old and one for our 13 month old, would we order a medium?