Lex Luthor can't see her hands. They are trapped in two cans in front of her. Each position she tries to put her body in is more uncomfortable than the last. She languishes in her cylindrical prisons.
The cage is pretty tight. It restricts her ability to sit, kneel, or even squat. After her time in the hand cans you'd think this would be less of a burden, but it's pure torment.
The cans and the cage keep Lex pretty restricted despite their simplicity. She struggles to maintain herself as her captor uses her helplessness to his advantage.