I have Marfans syndrome and I'm sick of people thinking I'm skinny based on my wrist and finger size.

I've tried Many Many cessions of hand Grip exercises and my fingers dont seam to be getting any thicker and perhaps no stronger either.

I'd love to have know an effective way of the obvious making my fingers more thick.

I've also tried therapy tension sand bags wrapped in balloons and they keep breaking on me over a month. I will be buying another tension bag. but so far I saw a physio therapist on youtube say that Grip excercise tools are bad for the tendons and muscles that open the hand. I am not relying on Grip tools anymore so I need an alternative.

any suggestions are great but if you just say use the 2 handled grip tool made of metal and a coil in the middle thats not working.