She's Prim's size in diameter.

“Betrayal. That’s the first thing I feel, which is ludicrous. For there to be be…”

“Fine. I'll train. But I'm going to the stinking capitol if I have to kill a cre…”

“If I feel ragged, my prep team seems in worse condition, knocking back coffee a…”

“I'm almost there, almost to the barricade, when I thinks she hears me. Because …”