Oups.. wrong place to ask !
I did try the aluminum foil and that did not work. I found one of the bengals sitting on it, I'm guessing it didn't bother her.
I have the two sided tape on the counter and I can see that they don't like it and its so far working...
No I will never get any product that would hurt my cats.
I'm also going to try to put some empty tin water bottles on the edges of the counter to block them and if they try to jump through them they will fall and make a loud noise.
Thanks for your suggestions everyone and next time I will be sure to post in the appropriate topic.