Ignore the fact that the picture shown is an entire queen square.
This is a queen square head only.
It is intended to be purchased with the queen square set in case you want to have a head for both handles so they can both be complete percussors at the same time, one with a 12 inch and one with a 16 inch handle. If you already have a handle that you got from somewhere else, though, you could just buy this and take a gamble on it fitting it (which is not recommended, for obvious reasons).
Included with this is one stainless steel head and one soft silicone bumper. Which isn't a bad deal since we are selling the bumpers by themselves for 6 dollars.