Question: how big are magnum condoms compared to regular?
Answer: The difference is in width of the shaft. Measured at the head, Trojans are 2 inches wide, Magnums are 2.5 inches, and Magnum XL's are 2.75 inches. Well okay, that's a difference. But since all the condoms taper to 2 inches at the base, the Magnums have a rather bizarre shape.