Previously known as the "Medium Smooth Bust," the Medium Bust is ideal for folks who want more volume than the default "Small Bust" that comes with all Smart Dolls.
The extra volume of the bust conceals the parting line between the torso and the bust. The Medium Bust has been sculpted in a way so that you don't need to squish them to gain cleavage.
Do note that this is an option part (not the entire doll!) where you need to remove the head and arms of your Smart Doll in order to swap out the bust.
Also note that all vinyl parts (including the parts that make up a Smart Doll) vary slightly in tone - meaning that if you buy this product, then it won't be a 100% color match with what you have - take note before deciding to buy.
More notes - this option bust part does not include anything else, meaning body parts, dolls, walls, stairs, ocean, or other humans that may be pictured in the photos.