Answering question for Plug - G&H, 1/4", Mono, Jumbo, Nickel, Copper Core

Product:
Plug - G&H, 1/4", Mono, Jumbo, Nickel, Copper Core

Question:
I need to know what diameter cable will fit inside the backshell - I have some very large dia. speaker cables to fit up. Is there a dimensional drawing of these plugs, or at least dimensions of the product itself?