Chicken wing root is also called chicken small hammer, chicken wing root inside only one bone! And it's much shorter than a chicken thigh!

Chicken thigh picture:

Chicken thigh from the chicken thigh meat (with bone), chicken thigh inside is two bones! A main bone thick, next to a small thin bone!

Chicken wing root picture:

Intuitively look at the chicken wing root than the chicken legs (pipa legs) to be much smaller, the two pictures put together to see at a glance.