Do 22' Yukon wheels have cavities in the back between the lug holes?

[40Rouge]

I'm curious if these 22 inch Denali wheels have cavities in the backside between the lug holes, or if it's solid. If so, does anyone know the depth of those cavities?

 

[Pivot]

This link shows the back side of the wheels - yes there's a cavity there. Unsure the size, but pretty small it appears. Curious - seeking additional storage?

 

[TollKeeper]

This link shows the back side of the wheels - yes there's a cavity there. Unsure the size, but pretty small it appears. Curious - seeking additional storage?

Gotta put that C0CAINE somewhere!

 

[Pivot]

Gotta put that C0CAINE somewhere!

Exactly what I was thinking lol. Great place right at nose level for the K-9 ha