This is a Princess Paradise Childs Size Small (6) T-Rex Fossil Dinosaur Skeleton Halloween Costume Dress-up play.
According to the princess paradise size chart this size fits:
Height 45"
Chest 25"
Waist 22 1/4"
Hip 26"
Inseam 19 3/4"
It zips up the front. The tail in the back sticks out. It has a soft feel to it.
It is in very good condition. looks like it was barely worn.