Reversible dress - black one side white the other, reversible hat black one side, white the other and 2 pairs of puff sleeves.

Measures 16" across from pit to pit
Waist 16" across and Hips 19" across 

stretchy type material label says Large to fit between 65-75 kg or 140-160lb

I'd say it would fit size 12-14 approx

Packaging is a bit scruffy - it has been opened. Costume is brand new with tags.