Sonia G Crease Two is a brush that retails for $34.00.
Sonia G Crease Two Brush ($34.00) is a medium-sized, tapered crease brush that comes to a stronger point but does fluff up a bit from its initial point, though it never fully rounds out. More tapered, noticeably pointed crease brushes are particularly good for distributing product into deeper creases or applying color precisely but diffuse color less quickly. The size is closer to the "standard" tapered crease brush in my experience, which I tend to use less often these days as I tend to reach for smaller crease brushes (even more precision) but like to use this style of brush without product to diffuse and blend any stubborn edges.
It was denser and held its shape better compared to other crease brushes I have that are similar in general shape/size (they are fluffier all around the top halves), which makes for better precision and control over the long haul. It does, however, pick up and apply a bit more product as a result, so I've learned to use a slightly lighter hand with it when working with more pigmented crease colors. The brush worked well for playing a transition shade into the crease area and blowing out the color quite a bit while still being able to concentrate color where wanted. The bristles are made out of Saikoho goat and were very soft and smooth against my skin but were still capable of really blending out product.
This Crease Two is similar to the Blender Pro in terms of functionality; it can be used in the crease or all over the lid, to build or to blend out the application. Compared to the Blender Pro, this Crease Two is going to build up the application similarly but leaving the application looking more diffused in its perimeter. It's denser and firmer than similarly shaped crease brushes. This is particularly applicable with heavier lids or more textured skin. The ferrule is curved, this is not only for aesthetic reasons but it contributes to the power of this shape.