Stress Balls are supposed to increase finger strength by gripping
Is there something like a giant stress ball or cushion like object that you push together at different values for size and strength much like resistance bands have different strength levels
Different sizes like hand held size or large size to push between thighs or to push between feet or to squeeze together with hands using the elbow and shoulder muscles
Something like this but different sizes not just different amounts of resistance
https://www.amazon.com/HiKeep-Exercise-Physical-Different-Resistance/dp/B0BDZY97CH/
I am assuming each color gives a different amount of resistance like therabands or the elastic stretch bands for exercise
My assumption might be wrong because the colors might just be there to look pretty
