It looks triangular in the picture,  but it is NOT. It is made with same wave patterns as the majority of others.
Heavier than I expected, but it is solid, with a lot of details, appears to be well made.
Fabric is velvety, not flannel as advertised, but I am glad, it adds a little more shimmer and it's pleasant for touch.
The size is for a small waist, which is fine with me.
Overall, looks like a very nice product. Will see how it will perform.