They have had one or two of the ball pull things on a limited few break. I tried to break a mates before he swapped it out and coulld got not get it to snap. I guess being rubber/plastic and if you play with enough it will fatigue.

Basically it just goes to the old/new canvas release like the B5 or pre airlite bar and it has the new plastic DD. ;)

Very neat and clever relacement I must say and all though I did like the ball I have heard some people have complained about it rubbing a bit when ridding unhooked so the canvas release with fix that for them too.....

So all you need is a knife to cut the old one off..... ;)