QiJack Mono vs Old Style Jack

Analysis Plus patented mono TS QiJack. World's best jack for guitar, base, keyboard, amp, pedal board, and headset.
The secret is the Patent Pending rings which expand into an oval shape to give you consistent grip on our plug to reduce contact resistance for the best sound. You know have two contact points for the Tip (+) and Sleeve (-) for better performance.

[nicholascremato]

I don't see what holds the jack in place. The guitar cord looks like it would just fall out. This animation just doesn't explain that.