One Panel #230: Robin's Utility Belt

From Batman & Robin: "The Masked Menace of the Boys' School" by Bill Finger, Bob Kane and Jerry Robinson, Detective Comics #41 (July 1940)

A look at Robin's belt, which contains a miniaturized wireless radio. If your utility belt can only have a single "utility", is that a good use of accessory real estate? Would you pack...

A batarang
A grappling hook
A rebreather/gas mask
Smoke bombs
Shark repellent
Something else?

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