Plastic Magnum

Are Trojan Magnums longer or wider than regular condoms?

I've been using Durex ultra-thins but have broken a couple. They leave a tight ring around the base of my penis too. I'm not huge by any means (7.25" long, 5.5" around), but my girlfriend thinks I might be more comfortable in a magnum. She said it looks like he's suffocating in plastic wrap lol. Will a magnum work better?

you actually measure it? awesome..................lol